CN113257415A - Health data collection device and system - Google Patents
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Abstract
A health data collection device and system are disclosed. The millimeter wave radar transmits millimeter wave signals and receives echoes to obtain radar echo data. The data analysis device analyzes the radar echo data, transmits a detection instruction for health data detection for a living body when the living body in a predetermined state is identified by the analysis, and acquires the health data of the living body from the returned radar echo data. The health data collection system can collect non-contact health data by adopting millimeter wave radar signals, and can measure the health data of a user, such as heartbeat information, breathing information and the like, more simply, conveniently, quickly and accurately.
Description
Technical Field
The present disclosure relates to the field of health data collection, and more particularly, to a health data collection device and system.
Background
With the continuous improvement of the life quality of people, people pay more and more attention to the health. Accordingly, convenient detection of health data, such as breath-per-minute, heart rate, etc., is becoming increasingly important.
In a conventional contact health data collection scheme, a device or a sensor is generally mounted on a living body such as a human body, which affects normal activities of the human body and affects use experience of a user. For example, a smart watch or some touch detection device may affect a user's activities, such as movement or sleep, to some extent.
In recent years, contactless health data collection schemes by ultrasound technology have been proposed. For example, health data relating to respiration and heartbeat of a person can be detected using ultrasound technology. However, in the case of detection using the ultrasonic technique, the detection resolution is not high, and accordingly, the measurement accuracy is not sufficiently high. Moreover, the effective detection distance for detection by using the ultrasonic technology is about 3 meters, and is also short. Furthermore, it has been found that the ultrasonic frequency range causes significant physiological, in particular auditory, interference in certain animals.
With the increasing requirements of people on health data detection, it is desirable to realize the health data detection more conveniently, quickly and accurately so as to improve the user experience.
Disclosure of Invention
One technical problem to be solved by the present disclosure is to provide a health data collection system, so that the collection of health data can be conveniently realized on the premise of ensuring the detection precision and not affecting the daily activities of a living body.
According to a first aspect of the present disclosure, there is provided a health data collecting system comprising: the millimeter wave radar transmits millimeter wave signals and receives echoes to obtain radar echo data; and the data analysis equipment analyzes the radar echo data, sends a detection instruction for detecting health data of the living body when the living body in a preset state is identified through analysis, and acquires the health data of the living body from the returned radar echo data.
Alternatively, the data analysis device determines whether the living body is in a predetermined state when the living body is analytically recognized.
Optionally, the system may further include: a control device that controls an operation of the millimeter wave radar such that: before receiving a detection instruction, the millimeter wave radar intermittently transmits a millimeter wave signal at a predetermined cycle; after receiving the detection instruction, the millimeter wave radar continuously transmits the millimeter wave signal.
Optionally, the data analysis device is a server, and the health data collection system may further include a routing device, where the routing device sends the radar echo data to the server, receives the detection instruction from the server, and issues the detection instruction to the control apparatus.
Optionally, the predetermined state comprises at least one of: lie, sit, stand and walk.
Optionally, the data analysis device further analyzes the radar echo data to obtain orientation data of the living body relative to the millimeter wave radar; and the millimeter wave radar adjusts the transmission direction of the millimeter wave signal according to the azimuth data.
Alternatively, when the data analysis device identifies a plurality of living bodies by analysis, the orientation data and the states thereof are identified, respectively; decomposing health data respectively belonging to each of a plurality of living bodies from the radar echo data; health data corresponding to the living body is stored in association with the living body.
Optionally, the data analysis device may send its corresponding health data to the electronic device associated with the identified animate object under analysis.
Optionally, the data analysis device establishes an association relationship between the electronic device and the identified living body, and sends the health data corresponding thereto to the electronic devices associated with the living body, respectively.
Optionally, the system may further include: and the display screen is used for displaying the spatial distribution of the living body obtained by analyzing the radar echo data.
Optionally, the system may further include: and the receiving device is used for receiving the input of the user so that the data analysis equipment establishes an association relation between the electronic equipment and the identified life body based on the spatial distribution of the life body.
Optionally, the receiving device and the millimeter wave radar have a fixed position relationship, the receiving device receives a voice uttered by a user so as to determine the orientation of the user relative to the millimeter wave radar according to the voice uttered by the user, wherein the receiving device or the data processing device further comprises a voiceprint recognition device which determines the electronic device of the user according to the voice uttered by the user, and the data analysis device determines the association relationship between the user and the living body recognized from the radar echo data according to the orientation of the user relative to the millimeter wave radar and the orientation data of the living body relative to the millimeter wave radar.
Optionally, the data analysis device may send the spatial distribution of the living body to the electronic device of the user, and the data analysis device may further receive feedback information from the electronic device of the user, and establish an association between the electronic device and the identified living body based on the feedback information.
Optionally, the system may further include: and the intelligent sound box indicates a user to perform feedback operation on the electronic equipment through voice.
Optionally, the data analysis device further performs at least one of the following processes: training a health characteristic model through big data learning; identifying a health state of the living being based on health data of the living being using the health feature model, wherein the health state includes a respiratory state and a heartbeat state.
Optionally, the data analysis device may analyze the radar echo data by using a heartbeat feature recognition algorithm to obtain a heartbeat feature data hit probability distribution, and recognize the heartbeat feature based on the heartbeat feature data hit probability distribution, where the heartbeat feature data hit probability distribution represents a probability that the heartbeat feature is detected at each position in the radar detection range in the space.
Optionally, the data analysis device may further include a filter, configured to filter interference from the hit probability distribution of the heartbeat feature data, so as to obtain an optimized hit probability distribution of the heartbeat feature data.
Alternatively, the filter may be an elliptic function filter.
According to a second aspect of the present disclosure, a health data collection device is provided. The device includes: the millimeter wave radar transmits millimeter wave signals and receives echoes to obtain radar echo data; the routing equipment is used for sending the radar echo data to the server, and receiving health data of a living body obtained by analyzing the radar echo data from the server under the condition that the living body in a preset state exists in the detection range of the millimeter wave radar; and an output device for outputting the health data.
Optionally, the health data may include heart rate and/or number of breaths per unit time.
Optionally, when the server identifies the existence of the living body in the predetermined state by analyzing the radar echo data, the server sends a detection instruction for health data detection of the living body to the routing device, and the health data collection apparatus may further include: a control device that controls an operation of the millimeter wave radar such that: before receiving a detection instruction, the millimeter wave radar intermittently transmits a millimeter wave signal at a predetermined cycle; after receiving the detection instruction, the millimeter wave radar continuously transmits the millimeter wave signal.
Optionally, the health data collecting device may be a smart speaker, further comprising a microphone and a speaker.
According to a third aspect of the present disclosure there is provided an animal health data collection system comprising: the millimeter wave radar transmits millimeter wave signals to the animal activity space and receives echoes to obtain radar echo data; and a data analysis device that analyzes the radar echo data, transmits a detection instruction for performing health data detection for an animal when the animal is identified by the analysis, and acquires health data of the animal from the returned radar echo data.
Optionally, the system may further include: an output device for outputting a sound or displaying an image or projecting a spot or image to attract the attention of the animal and/or to cause the animal to change a state of motion in response to the health data of the animal indicating that the animal is in the predetermined physiological state.
Optionally, the system may further include: and the information sending device is used for sending the health data of the animal to the server and/or the user electronic equipment.
Alternatively, the animal may be at least one of a pet, a watchdog, a farm animal.
Optionally, the animal is a watchdog, positioned near the doorway. The data analysis device may further analyze the radar echo data to identify a living body entering or passing through the area, and transmit warning information to at least one of the information output device, the server, and the user electronic device when the data analysis device identifies that there is a living body entering or passing through the area.
According to a fourth aspect of the present disclosure, there is provided a security monitoring system comprising: the millimeter wave radar transmits millimeter wave signals to at least one area where the door, the window and the wall are located and receives echoes to obtain radar echo data; the data analysis equipment analyzes the radar echo data to identify the life bodies entering or passing through the area; and an information sending device that sends alarm information when the data analysis device recognizes that a living body enters or passes through the area.
According to a fifth aspect of the present disclosure, there is provided a health data detection system comprising: the millimeter wave radar transmits millimeter wave signals to a channel through which a living body passes, receives echoes and obtains radar echo data; and the data analysis equipment is used for analyzing the radar echo data, sending a detection instruction for detecting the health data of the living body when the living body is identified to enter or pass through the channel through analysis, and acquiring the health data of the living body from the returned radar echo data.
Therefore, according to the health data collecting system disclosed by the invention, the health data collecting system can be provided for the user so as to simply, conveniently, quickly and accurately collect the health data of the living body in the space.
Drawings
The above and other objects, features and advantages of the present disclosure will become more apparent by describing in greater detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
FIG. 1 shows a schematic block diagram of a health data collection system according to one embodiment of the present disclosure.
FIG. 2 shows a schematic flow chart that may be used to implement the above-described health data collection system according to one embodiment of the present disclosure.
Fig. 3 shows a schematic flow diagram of a data analysis device obtaining life health data according to one embodiment of the present disclosure.
FIG. 4 illustrates an exemplary graph of a probability distribution of a heartbeat data hit.
Detailed Description
Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Accordingly, the present disclosure provides a health data collection system, wherein radar echo data is analyzed based on a millimeter wave radar to obtain health data of a living body.
Millimeter wave radar technology is used as a non-contact detection method, and can overcome the defects brought by a contact detection device. Compared with other non-contact detection technologies, the working frequency band of the millimeter wave radar can reach dozens of Hz, such as 24GHz, 60GHz and 77GHz, and further, the interference or other influences on the physiology, such as the hearing, of animals can not be caused. Moreover, the effective detection distance of the millimeter wave radar can reach 12 meters, and the resolution is higher than that of the ultrasonic technology.
In the millimeter wave radar technology, on the one hand, according to the rectilinear propagation, the constant speed and the reflection characteristic of electromagnetic wave, a bundle of millimeter wave signal is launched towards a certain direction to the antenna in the millimeter wave radar, meet the barrier for example after the life body, can reflect the radar echo, and the distance of barrier and millimeter wave radar can be confirmed to this time difference of going one time, and the antenna only needs to record the receiving direction of radar echo, can obtain the direction that the life body is located, and then confirms the position data that the life body corresponds.
On the other hand, the collection and analysis of radar echo data within a period of time obtained by the millimeter wave radar continuously transmitting millimeter wave signals can obtain the characteristics of health data about a living body, such as heartbeat data, respiration data and the like, and further distinguish and calculate the health data, such as heart rate and/or respiration times per unit time.
The present disclosure also discloses aspects of a health data collection system that combines the above two aspects of millimeter wave radar technology.
With the progress of millimeter wave radar technology, millimeter wave radar may be implemented in the form of a chip. Millimeter wave radar chips may be added to other devices, such as smart enclosures, to enable millimeter wave radar detection capabilities for other devices, such as smart enclosures.
FIG. 1 shows a schematic block diagram of a health data collection system according to one embodiment of the present disclosure.
Referring to fig. 1, the health data collection system of the present disclosure may include a millimeter wave radar 110 and a data analysis device 120. In some cases, control device 130, routing apparatus 140, display screen 150, receiving device 160, and the like may also be included.
The millimeter wave radar 110, the control device 130, the routing apparatus 140, the display 150, and the receiving device 160 may also be integrated in a health data collection device such as a smart sound box, among others. The smart sound box may further include a microphone, a speaker, and the like.
In addition, the data analysis device 120 may be disposed on a server, and communicate with a health data collection apparatus, such as a smart speaker, via the routing device 140 via a network.
Alternatively, the data analysis device 120 may be located locally, for example in local communication with a health data collection device such as a smart speaker, or may be integrated into the health data collection device as such, such as a smart speaker.
FIG. 2 shows a schematic flow chart that may be used to implement the above-described health data collection system according to one embodiment of the present disclosure.
As shown in fig. 2, in step S210, the millimeter wave radar transmits a millimeter wave signal and receives an echo, resulting in radar echo data.
The millimeter wave signals have the characteristics of high detection resolution, large information capacity and the like, the detection of the human health data can be realized by using the millimeter wave radar technology, and vital sign indexes such as heart rate, pulse and respiratory rate can be obtained by analyzing the characteristics of radar echo data and performing model matching.
In step S220, the data analysis device analyzes the radar echo data, transmits a detection instruction for health data detection for a living body when the living body in a predetermined state is identified by the analysis, and acquires health data of the living body from the returned radar echo data.
The radar echo data are analyzed, for example, the millimeter wave energy spectrum in the radar echo data is subjected to feature analysis to obtain a health feature model, and the health feature model is matched with the health feature model obtained by cloud big data learning to generate final health data of the living body.
Health data includes, but is not limited to, respiratory state and heartbeat state. Wherein the respiratory state may be respiratory rate; the heartbeat state may be a vital sign of a living body such as a pulse, a heart rate, etc.
The data analysis device 120 may determine whether the living body is in a predetermined state when the living body is analyzed and recognized.
The predetermined state may be, for example, one or more of lying, sitting, standing, and walking.
In a further embodiment it can be further analyzed whether the living body in the lying state is in a sleeping state. For example, health data detection collection may be performed only on a sleeping living being.
Thus, the health data collection device of the present disclosure can directionally analyze the living body identifying one or several states among the predetermined states for the collection of the health data. For example, the collection of health data may be performed for a human being in a recumbent position for sleep detection.
Specifically, when it is recognized by the analysis that there is a living body in a lying posture, a detection instruction for health data detection for the living body is transmitted, and health data of the living body is acquired from the returned radar echo data.
As shown in fig. 1, the health data collecting system of the present disclosure may further include a control device 130 that may control the operation of the millimeter wave radar 110 such that: before receiving a detection instruction, the millimeter wave radar intermittently transmits a millimeter wave signal at a predetermined cycle; after receiving the detection instruction, the millimeter wave radar continuously transmits the millimeter wave signal.
Referring to fig. 1, in response to a detection instruction for health data detection for the living body, which is sent by the data analysis device 120, the control apparatus 130 sends a control instruction to the millimeter wave radar 110, so that the millimeter wave radar 110 continuously sends a millimeter wave signal; when the detection instruction is not received, the control device 130 issues a control instruction to the millimeter wave radar 110 so that the millimeter wave radar 110 intermittently transmits the millimeter wave signal at a predetermined cycle. Based on the echo data of the millimeter wave signal transmitted intermittently, the data analysis device 120 can recognize the presence, orientation, and state (sitting, standing, lying, walking, etc.) of the living body. Based on the echo data of the millimeter wave signals transmitted continuously, the data analysis device 120 may identify health-related features such as heartbeat features and respiratory features, and correspondingly acquire health data. Of course, the data analysis device 120 can also recognize the presence, orientation, and state of the living body based on the echo data of the millimeter wave signal transmitted continuously.
Thus, the continuous work of the millimeter wave radar 110 and the waste of energy can be avoided; the data analysis device 120 may also automatically extend the predetermined period in the case where it is recognized that no living body exists in the space.
The data analysis device 120 may be a server, for example, a cloud server that is convenient and secure for accessing data.
In another aspect, the health data collection system may further include a routing device 140. The millimeter-wave radar 110, the control device 130, the display 150, and the receiving device 160, and the like can all communicate with the data analysis device 120 (server) through the routing device 140.
Here, for example, the routing device 140 may transmit radar echo data received by the millimeter wave radar to the server, and, in a case where there is a living body in a predetermined state within the detection range of the millimeter wave radar, receive health data of the living body acquired by analyzing the radar echo data from the server; the routing device 140 may also receive the detection instruction from the server and send the detection instruction to the control apparatus 130.
It should be understood that the server may also communicate with the data analysis device 120 (server) through other devices that may function to connect and transfer data between the devices and the data analysis device 120 (server).
In another embodiment, the data analysis device 120 may analyze orientation data of the living body with respect to the millimeter wave radar 110 from the radar return data. Here, the orientation data may be information such as the origin of coordinates of the position of the millimeter wave radar 110, the distance of the living body with respect to the millimeter wave radar 110, the direction angle, and the pitch angle. The millimeter wave radar 110 may adjust the signal transmission direction of the millimeter wave according to the orientation data so as to focus detection on the orientation where the living body is located as much as possible.
For example, when a relative displacement of the living body and the millimeter wave radar 110 is detected based on the orientation data, the millimeter wave radar 110 may adjust the signal transmission direction so that the living body is located at a position in the detection range of the millimeter wave radar 110 that is more suitable for the detection of health data (e.g., heartbeat, respiration), for example, at a position near the middle in the radar detection range.
When the data analysis device 120 identifies a plurality of living bodies by analysis, for example, when there are a plurality of living bodies in the space in which the millimeter wave radar 110 is located, the orientation data and the state of each living body can be identified separately. The millimeter wave radar 110 can simultaneously perform detection for a plurality of living bodies in a predetermined state.
The data analysis device 120 may separate the health data of each of the plurality of living bodies from the radar echo data, for example, based on the frequency and phase characteristics in the spectrum of the radar echo data. Here, the health data may be a respiratory state and a heartbeat state, the respiratory state may be a respiratory rate, and the heartbeat state may be a pulse or a heart rate.
The data analysis device 120 may store health data corresponding to the identified animate object in association with the animate object.
Therefore, the health data of a plurality of life bodies can be detected and collected at the same time without a plurality of health data detection devices, and the redundancy of the devices and the waste of resources are avoided.
Health data of a plurality of life bodies can be sent to an electronic device for all people to view.
Alternatively, the health data corresponding to the analyzed and recognized living body may be transmitted to each of the electronic devices associated with the living body.
Here, for example, the living body may be a human being, and the health data of the living body can be obtained in the associated electronic device without wearing the measuring device, which is more intelligent and convenient. The health data may include specific values such as heart rate, number of breaths per unit time, etc. and analyzed health status such as an evaluation of the index value or the index value.
Thus, the health data collection system in an embodiment of the present disclosure may also perform health data interaction with the user.
In one embodiment, the health data collection system of the present disclosure may further include a display screen 150, and the display screen 150 may present a spatial distribution of the living body based on the analysis of the radar return data.
Orientation data of the living body with respect to the millimeter wave radar 110 may be obtained based on the analysis of the radar return data, and the distribution of the living body in space may be obtained based on the analysis of the orientation data, and the living body may be spatially distributed, for example, in the form of a picture, to be presented in the display screen 150.
In another embodiment, the health data collection system of the present disclosure may further include a receiving device 160. The receiving means 160 may be used to receive input from a user for the data analysis device to establish an association between the electronic device and the identified animate object based on the spatial distribution of the animate object.
Specifically, the receiving device 160 may be an input device such as a keyboard and a mouse. Alternatively, the display screen 150 may be a touch screen and also serve as the receiving device 160, and the user may select the corresponding living entity in the spatial distribution of the living entities presented in the display screen by clicking or typing, for example, clicking the corresponding living entity outline presented on the display screen 150 or typing the number of the corresponding living entity.
The user may also enter an account number or contact address of the associated electronic device. Thereby enabling the data analysis device 120 to establish an association between the electronic device and the identified living entity based on the spatial distribution of the living entity.
Alternatively, the receiving device 160 may also be an audio receiving device that receives sounds emitted by the living being, so as to determine the position of the living being relative to the receiving device 160 from the received sounds. Techniques for determining the orientation of a sound source relative to a receiving device by analyzing received sound are well known in the art and will not be described in detail herein.
The receiving means 160 and the millimeter wave radar 110 may have a fixed positional relationship therebetween, for example, the receiving means 160 and the millimeter wave radar 110 may be disposed close to each other or on the same device having a smaller volume (e.g., a smart sound box). Thus, the two positions can be considered together, and the orientation of the living body with respect to the receiving device 160 is equivalent to the orientation with respect to the millimeter wave radar 110.
Thus, by receiving the voice uttered by the user, the receiving device 160 determines the orientation of the user with respect to the receiving device 160, and can accordingly determine the orientation of the user with respect to the millimeter wave radar.
For example, the receiving device 160 may include a plurality of sound source receiving devices, such as microphones, for respectively receiving the voice uttered by the user. The data analysis device 120 may determine the orientation of the user with respect to the receiving apparatus 160, for example, based on the sound intensity difference effect and/or the time difference effect in the sound field. And since the receiving apparatus 160 and the millimeter wave radar 110 have a fixed positional relationship, the orientation of the user with respect to the millimeter wave radar 110 can be determined.
For a living body in the detection range of the millimeter wave radar 110, the orientation of the living body with respect to the millimeter wave radar 110 may be obtained by analyzing radar echo data, and may also be obtained by other various means, such as the sound analysis method described herein. The association between the live body identified by other (e.g. sound analysis) methods and the live body identified from the radar echo data may be determined by matching the orientation data obtained in both ways, for example in case the deviation does not exceed a predetermined threshold.
If the user information, such as an account number, corresponding to the living body can be obtained while the living body and the orientation thereof are identified by using other methods (such as sound analysis), the user information, such as the account number, can be matched with the living body identified in the radar echo data.
Further, the receiving device 160 of the present disclosure may also transmit the received voice data to the voiceprint recognition device. For example, the voiceprint recognition means may be comprised in the data analysis device 120. Alternatively, the data analysis device 120 may have a function of voiceprint recognition, and may further function as a voiceprint recognition means here.
Alternatively, the voiceprint recognition means may also be included in the receiving means 160.
Alternatively, the voiceprint recognition means may be included in the health data collection means, and the voice may be received from the receiving means 160 and the voiceprint analysis may be performed.
Therefore, when the position of the user is determined based on the sound field, the voiceprint recognition device can also determine the identity of the user according to the voice sent by the user, for example, by comparing the voiceprint recognition technology with voice data pre-stored in a local area or a server, identity information of the user is obtained, for example, a corresponding account or any contact way capable of sending data to electronic equipment corresponding to the user, and then the electronic equipment corresponding to the user is determined.
In addition, the user can also input an account or a contact way of the corresponding electronic equipment through voice, recognize the content input by the user through voice, and determine the electronic equipment corresponding to the user.
Then, the data analysis device 120 may match the orientation of the user with respect to the millimeter wave radar 110 obtained by analyzing the radar echo data with the orientation of the living body with respect to the millimeter wave radar 110 obtained by other methods such as sound analysis, and determine the association between the living bodies identified by the two methods.
Further, by receiving various inputs of the user through the input device 160, or by voiceprint analysis, identity information of a living body recognized by other means such as voice analysis, for example, account information, etc., is determined. In this way, identity information of the user identified by the radar echo data analysis may be determined.
Alternatively, the data analysis device 120 may also send the spatial distribution of the living being obtained by the radar echo data analysis to the electronic device of the user, for example, through the routing device 140. For example, the data analysis device 120 may store, in advance, an account or a contact address of the electronic device corresponding to the user, or may also obtain, according to any one of the methods described above, the account or the contact address of the electronic device corresponding to the user.
The data analysis device 120 may receive feedback information from the electronic device of the user and establish an association between the electronic device and the identified animate object based on the feedback information.
Specifically, the feedback information may be that the user clicks/inputs/selects the living body corresponding to the position where the user is located in the received living body spatial distribution map, and then the data analysis device establishes an association relationship between the electronic device and the identified living body based on the feedback information.
In another embodiment, the health data collection system of the present disclosure may further include a smart speaker, which may instruct the user to perform a feedback operation on the electronic device by voice.
For example, the smart speaker may indicate "please match the corresponding living body" by voice, and further indicate the user to perform a feedback operation at a predetermined location in the electronic device, for example, the user may input the corresponding living body at the predetermined location in the electronic device according to the spatial distribution of the living body displayed on the display screen and the corresponding serial number of the living body.
In addition, in the health data collection system of the present disclosure, the millimeter wave radar 110, the control device 130, the display screen 150, the routing device 140, and the voiceprint recognition device may all be integrated in the above-mentioned smart speaker, so that all the aforementioned functions can be realized by one smart speaker, the collection of the health data of the user in the space where the smart speaker is located is completed, and the user can interact with the user in various ways, so that the user receives the corresponding health data, and the user experience is further improved.
In another embodiment, the data analysis apparatus in the present disclosure may further perform at least one of the following processes: training a health characteristic model through big data learning; a health status of the living being is identified based on health data of the living being using the health feature model, wherein the health status may include a respiratory status and a heartbeat status.
Fig. 3 shows a schematic flow diagram of a data analysis device obtaining life health data according to one embodiment of the present disclosure.
Referring to fig. 3, the data analysis apparatus receives radar data at step S310. The data analysis device may receive radar echo data from the millimeter wave radar through the routing device as shown in fig. 1.
In step S320, millimeter wave energy spectrum distribution analysis is performed on the radar echo data.
In step S330, the radar echo data is subjected to spectrum slicing to extract features. Here, accurate slicing operation can be performed according to the effective signal intensity to perform feature extraction.
And step S340, big data learning and health characteristic model training. Here, the health feature model may be trained through big data learning based on an existing database of health data.
And S350, performing model matching according to the extracted health characteristics to obtain the health data of the life body. Furthermore, a concise health data table can be obtained according to a certain format, and then the life body can be identified.
The data analysis device 120 may also identify a health state of the living being based on the living being health data. The health data of the living body can be respiratory frequency, heart rate and other vital signs, the health state of the living body can be a respiratory state and a heartbeat state, and the health state can be obtained by analyzing or matching the health characteristic model based on the health data.
In addition, in order to accurately identify the heartbeat feature from the radar echo, the data analysis device 120 may analyze the radar echo data by using a heartbeat feature identification algorithm, obtain a heartbeat feature data hit probability distribution, and identify the heartbeat feature based on the heartbeat feature data hit probability distribution.
The heartbeat feature recognition algorithm can be an existing medical millimeter wave radar data analysis algorithm.
The probability distribution of the hit of the heartbeat feature data represents the probability of detecting the heartbeat feature everywhere in the radar detection range in the space.
FIG. 4 illustrates an exemplary graph of a probability distribution of a heartbeat data hit.
Where the abscissa represents the azimuth angle of the radar echo with respect to the center of the sweep range of the millimeter wave radar 110, and the ordinate represents the distance to the millimeter wave radar 110.
The shades of gray everywhere in the figure represent the probability of finding (hitting) a heartbeat feature. The smaller the grayscale, the brighter, the greater the probability of representation. It should be appreciated that the beat feature data hit probability distribution of FIG. 4 may be colored, with different colors corresponding to different probabilities.
The data on the right side associated with shades of gray (or color) corresponds to the probability of finding (hitting) a heartbeat feature. The higher the value, the greater the probability.
In the actual debugging process, the inventor finds that factors such as angle measurement errors and the like can influence the accuracy rate of probability distribution of the hit of the heartbeat feature data. For example, around an angle of 0 degrees, the probability distribution exhibits a gaussian distribution characteristic. And when the azimuth angle is more than 30 degrees or less than-30 degrees, the probability distribution presents a multi-modal distribution characteristic.
In this way, a filter may be further disposed in the data analysis device 120, and is used to filter interference from the hit probability distribution of the heartbeat feature data, so as to obtain an optimized hit probability distribution of the heartbeat feature data. The filter may be, for example, an elliptic function filter.
In the optimized heartbeat feature data hit probability distribution, the edge of the heartbeat feature region (the highlight region in fig. 4) becomes sharper, and the identification precision is improved. There may be a high probability of hitting within a larger angular range.
In addition, in order to improve the precision, a machine learning module can be further added to optimize the influence of different angles on the accuracy rate of the probability distribution hit by the heartbeat feature data.
The health data collecting device of the present disclosure may further include an output device for outputting the health data obtained by the above method. Here, the output means may acquire the health data it receives from the data analysis device 120 (server) from the routing device 140 and output it.
The output device may be the display 150 described above. Alternatively, the output device may be an audio output device, such as a speaker of a smart speaker.
The health data collecting system can detect the human body state by collecting the health data, and combines the voiceprint recognition technology and the millimeter wave radar positioning technology, and has the function of interacting with electronic equipment of a user, so that professional guard can be provided for human health in the space, the problems of inconvenience and equipment redundancy of a contact type health detection device in the prior art are solved, the problems that the non-contact type health detection equipment is insufficient in precision and cannot interact with the user are solved, the user experience is improved, and the system is simple, convenient and intelligent.
The health data collecting system according to the present invention has been described above in detail with reference to the accompanying drawings.
In addition, the health data collection system of the present disclosure may collect health data of a person, and may also be designed to collect health data of an animal.
The millimeter wave radar can transmit millimeter wave signals to the animal activity space and receive echoes to obtain radar echo data.
And the data analysis equipment analyzes the radar echo data. And when the animal is identified to exist through analysis, sending a detection instruction for detecting health data of the animal, and acquiring the health data of the animal from the returned radar echo data.
The animal can be a pet, such as a cat or a dog, the moving space of the animal is indoor, and the owner can know the health state of the pet at any time.
Or, the animal may be a watchdog, the animal activity space is a doorway (e.g., a doorway of a hospital), and the owner can know the health state, the activity state, whether to sleep, and the like of the watchdog at any time.
Or the animals can be breeding animals such as chickens, ducks, cattle, sheep and the like, breeding personnel can collect the health state of the breeding animals at any time, identify the breeding animals with bad health state or diseases, and discover the illness state of individual breeding animals and the epidemic situation of a plurality of breeding animals as soon as possible.
In addition, an output device such as an audio output device, an image output device, a projection device, or the like may also be provided. In response to the detected health data of the animal indicating that the animal is in the predetermined physiological state, outputting a sound, or displaying an image, or projecting a spot of light or an image to attract the attention of the animal and/or to cause the animal to change a movement state.
For example, in order to avoid that an animal (e.g., a pet cat) always rolls around a corner, for example, and does not move, when it is detected that the animal is in a still state or a resting state or a semi-resting state (the physiological state of the animal, such as resting state, can be analyzed and judged according to the breathing frequency and the pulse frequency) for a predetermined time, a specific sound, such as a sound of a cat hoof, a dog hoof or a host, is output, or a picture or video capable of stimulating the animal to be active is displayed, or a light spot or an image is projected in an area visible to the animal, so as to attract the attention of the animal, and/or prompt the animal to change the moving state.
In addition, an information transmitting device may be provided for transmitting the acquired animal health data to a server and/or an electronic device of the user. The user can conveniently check the health data of the animal and know the health state of the animal.
In addition, in the case of an animal being a watchdog placed near the doorway, in addition to the health data of the doorway, security monitoring of the doorway area may be performed simultaneously.
The data analysis device may also analyze the radar return data to identify a living being, such as a person or other animal, entering or passing through the area and send alert information to at least one of an information output device (e.g., an audio output device, an image output device, a projection device, etc.), a server, and a user electronic device when the data analysis device identifies the presence of the living being entering or passing through the area.
In addition, the system can also be used as a safety monitoring system specially for safety monitoring.
In this case, the millimeter wave radar transmits a millimeter wave signal to at least one region where a person may intrude, such as a door, a window, a wall head, and the like, and receives an echo to obtain radar echo data.
The data analysis device analyzes the radar echo data to identify a living being entering or passing through the region.
When the data analysis device recognizes that a living body enters or passes through the area, the information transmission device transmits alarm information to at least one of an information output device (such as an audio output device, an image output device, a projection device, and the like), a server, and a consumer electronic device. Accordingly, an information output device (e.g., an audio output device, an image output device, a projection device, etc.) outputs the alert information or presents the alert information on the electronic device of the user.
In addition, the system can also be used for health data detection in public environments, such as intensive personnel areas of railway stations, airports, subway stations and the like.
The millimeter wave radar transmits millimeter wave signals to a channel (such as an entrance channel of a railway station, a subway station or an airport) through which a living body passes, receives echoes, and obtains radar echo data.
The data analysis equipment analyzes the radar echo data, sends a detection instruction for detecting health data of a living body when the living body is identified to enter or pass through the channel through analysis, and acquires the health data of the living body from the returned radar echo data.
It is known that the body temperature of a human body rises by 1 ℃, and the pulse increases by about 12 times per minute on average. Therefore, the body temperature can be estimated by detecting the pulse times of people in public environment, and potential fever patients can be conveniently found.
Furthermore, the method according to the invention may also be implemented as a computer program or computer program product comprising computer program code instructions for carrying out the above-mentioned steps defined in the above-mentioned method of the invention.
Alternatively, the invention may also be embodied as a non-transitory machine-readable storage medium (or computer-readable storage medium, or machine-readable storage medium) having stored thereon executable code (or a computer program, or computer instruction code) which, when executed by a processor of an electronic device (or computing device, server, etc.), causes the processor to perform the steps of the above-described method according to the invention.
Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the disclosure herein may be implemented as electronic hardware, computer software, or combinations of both.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems and methods according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (28)
1. A health data collection system comprising:
the millimeter wave radar transmits millimeter wave signals and receives echoes to obtain radar echo data;
and the data analysis equipment analyzes the radar echo data, sends a detection instruction for detecting health data of the living body when the living body in a preset state is identified through analysis, and acquires the health data of the living body from the returned radar echo data.
2. The system of claim 1, wherein,
the data analysis device judges whether the living body is in a predetermined state when analyzing and recognizing the living body.
3. The system of claim 1, further comprising:
a control device that controls an operation of the millimeter wave radar such that:
before receiving the detection instruction, the millimeter wave radar intermittently transmits millimeter wave signals at a predetermined cycle;
after receiving the detection instruction, the millimeter wave radar continuously transmits a millimeter wave signal.
4. The system of claim 2, wherein the data analysis device is a server, the health data collection system further comprising:
and the routing equipment is used for sending the radar echo data to a server, receiving a detection instruction from the server and issuing the detection instruction to the control device.
5. The system of claim 1, wherein the predetermined condition comprises at least one of:
lie, sit, stand and walk.
6. The system of claim 1, wherein,
the data analysis equipment also analyzes the radar echo data to obtain the orientation data of the living body relative to the millimeter wave radar;
and the millimeter wave radar adjusts the transmission direction of the millimeter wave signal according to the azimuth data.
7. The system of claim 5, wherein,
when the data analysis equipment identifies a plurality of life bodies through analysis, respectively identifying the orientation data and the states of the life bodies;
decomposing health data respectively belonging to each of the plurality of living bodies from the radar echo data;
health data corresponding to the living body is stored in association with the living body.
8. The system of claim 6, wherein,
and the data analysis equipment sends the corresponding health data to the electronic equipment associated with the analyzed and identified living body.
9. The system of claim 7, wherein,
and the data analysis equipment establishes an incidence relation between the electronic equipment and the identified life body and respectively sends corresponding health data to the electronic equipment associated with the life body.
10. The system of claim 8, further comprising:
and the display screen is used for displaying the spatial distribution of the living body obtained by analyzing the radar echo data.
11. The system of claim 9, further comprising:
and the receiving device is used for receiving the input of a user so that the data analysis equipment establishes an association relation between the electronic equipment and the recognized life body based on the spatial distribution of the life body.
12. The system of claim 10, wherein,
the receiving device and the millimeter wave radar have a fixed position relation, the receiving device receives the voice sent by the user so as to determine the direction of the user relative to the millimeter wave radar according to the voice sent by the user,
wherein, the receiving device or the data processing device also comprises a voiceprint recognition device which determines the electronic device corresponding to the user according to the voice sent by the user,
the data analysis device determines an association relationship between the user and the living body identified from the radar echo data, based on the orientation of the user with respect to the millimeter wave radar and the orientation data of the living body with respect to the millimeter wave radar.
13. The system of claim 8, wherein,
the data analysis device transmits the spatial distribution of the living being to the electronic device of the user,
the data analysis device receives feedback information from an electronic device of a user and establishes an association between the electronic device and the identified animate object based on the feedback information.
14. The system of claim 12, further comprising:
and the intelligent sound box indicates a user to perform feedback operation on the electronic equipment through voice.
15. The system of claim 1, wherein the data analysis device further performs at least one of:
training a health characteristic model through big data learning;
identifying a health state of the living being based on health data of the living being using a health feature model, wherein the health state includes a respiratory state and a heartbeat state.
16. The system of claim 1, wherein,
the data analysis equipment analyzes the radar echo data by using a heartbeat feature recognition algorithm to obtain heartbeat feature data hit probability distribution, and recognizes heartbeat features based on the heartbeat feature data hit probability distribution, wherein the heartbeat feature data hit probability distribution represents the probability of detecting the heartbeat features at each position in the radar detection range in space.
17. The system of claim 16, wherein,
the data analysis equipment further comprises a filter, wherein the filter is used for filtering interference from the probability distribution of the hit of the heartbeat characteristic data to obtain the optimized probability distribution of the hit of the heartbeat characteristic data.
18. The system of claim 17, wherein,
the filter is an elliptic function filter.
19. A health data collection device comprising:
the millimeter wave radar transmits millimeter wave signals and receives echoes to obtain radar echo data;
the routing equipment is used for sending the radar echo data to the server, and receiving health data of a living body obtained by analyzing the radar echo data from the server under the condition that the living body in a preset state exists in a millimeter wave radar detection range; and
an output device for outputting the health data.
20. The health data collecting device according to claim 19,
the health data comprises heart rate and/or number of breaths per unit time.
21. The health data collecting device according to claim 19,
when the server identifies that a living body in a preset state exists by analyzing the radar echo data, sending a detection instruction for detecting health data of the living body to the routing equipment,
the health data collecting apparatus further comprises:
a control device that controls an operation of the millimeter wave radar such that:
before receiving the detection instruction, the millimeter wave radar intermittently transmits millimeter wave signals at a predetermined cycle;
after receiving the detection instruction, the millimeter wave radar continuously transmits a millimeter wave signal.
22. The health data collecting device of claim 19, wherein said health data collecting device is a smart speaker, further comprising a microphone and a speaker.
23. An animal health data collection system comprising:
the millimeter wave radar transmits millimeter wave signals to the animal activity space and receives echoes to obtain radar echo data; and
and the data analysis equipment analyzes the radar echo data, sends a detection instruction for detecting health data of the animal when the animal is identified to exist through analysis, and acquires the health data of the animal from the returned radar echo data.
24. The system of claim 23, further comprising:
an output device for outputting a sound, or displaying an image, or projecting a spot of light or an image to draw attention to the animal and/or to cause the animal to change a state of motion in response to the health data of the animal indicating that the animal is in a predetermined physiological state; and/or
And the information sending device is used for sending the health data of the animal to a server and/or a user electronic device.
25. The system of claim 23, wherein,
the animal is at least one of pet, watchdog and breeding animal.
26. The system of claim 23, wherein,
the animal is a watchdog, is arranged near the doorway,
the data analysis device also analyzes the radar echo data to identify the living body entering or passing through the area, and sends alarm information to at least one of the information output device, the server and the user electronic device when the data analysis device identifies that the living body enters or passes through the area.
27. A security monitoring system comprising:
the millimeter wave radar transmits millimeter wave signals to at least one area where the door, the window and the wall are located and receives echoes to obtain radar echo data;
a data analysis device for analyzing the radar echo data to identify a living body entering or passing through the area; and
and the information sending equipment is used for sending alarm information when the data analysis equipment identifies that the living body enters or passes through the area.
28. A health data detection system comprising:
the millimeter wave radar transmits millimeter wave signals to a channel through which a living body passes, receives echoes and obtains radar echo data; and
and the data analysis equipment is used for analyzing the radar echo data, sending a detection instruction for detecting the health data of the living body when the living body is identified to enter or pass through the channel through analysis, and acquiring the health data of the living body from the returned radar echo data.
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