Wearable device of millimeter wave radar and application method thereof

Abstract

The invention discloses a wearable device based on a millimeter wave radar and an application method thereof, and belongs to the technical field of electronics. The equipment mainly comprises a millimeter wave radar which is carried on wearable equipment and transmits and receives millimeter waves so as to acquire external environment data or human body surface data; and the calculation unit is used for calculating and judging whether a person wearing the wearable equipment is a life body or judging the external environment condition according to the external environment data or the human body surface data transmitted by the millimeter wave radar. The monitoring technology of the millimeter wave radar is utilized, the obtained external environment data and human body surface data are more accurate, the detection range of the wearable device is guaranteed, meanwhile, the wearable device is not affected by the environment, and the application scene is wider.

Description

Technical Field

[0001] This application relates to the field of electronic technologies, and particularly to a wearable device with a millimeter-wave radar and its application method. Background Art

[0002] With the rapid development of information technology and the increasingly high demands of the general public for the functions and safety performance of wearable devices, traditional wearable devices can no longer meet the market needs. There are the following problems in the actual application of the existing technologies. For example, when wearing a wearable device that relies on a camera and entering a public place, there is a risk of leaking others' privacy, and when the user's hands are wet or wearing external objects such as gloves, it is inconvenient to operate the screen of these wearable devices.

[0003] Traditional wearable devices mainly rely on optoelectronic sensors to collect human biological signs. However, when worn loosely or the wearer has a lot of sweat, the collected data will be seriously distorted, and it cannot effectively identify whether the wearing target is a living body, and the application scenario is narrow.

[0004] Therefore, the existing wearable devices have problems such as invading others' privacy by relying on cameras to perceive the external environment, or being easily affected by the environment when relying on optoelectronic sensors to collect human vital sign information, resulting in inaccurate data, and being unable to autonomously identify living bodies and accurately monitor and warn the external environment. Summary of the Invention

[0005] Aiming at the problems of the existing technologies that cannot achieve accurate data collection and accurately monitor and warn the external environment, this application mainly provides a wearable device with a millimeter-wave radar and its application method.

[0006] To achieve the above object, the first technical solution adopted by this application is: A wearable device with a millimeter-wave radar, which includes: a millimeter-wave radar, which is mounted on the wearable device and emits and receives millimeter waves to obtain external environment data or human body surface data; a calculation unit, which calculates and determines whether the person wearing the wearable device is a living body or determines the external environment situation according to the external environment data or human body surface data transmitted by the millimeter-wave radar.

[0007] Optionally, according to the minute motion information collected by the millimeter-wave radar, calculate and determine whether the person wearing the wearable device is a living body.

[0008] Optionally, according to the distance information, speed information, horizontal positioning information, and vertical positioning information collected by the millimeter-wave radar, calculate and determine the external environment situation.

[0009] Optionally, when the wearable device is worn by a living being, the reflected waves received by the millimeter-wave radar are used to collect human vital sign data; and, based on the human vital sign data, the vital signs of the wearer are analyzed to implement intelligent functions including fatigue reminder and motion recognition.

[0010] Optionally, the computing unit is carried on a cloud host.

[0011] Optionally, the calculated external environment conditions are returned to the wearable device, and warning functions and environmental recording functions are implemented according to the external environment conditions.

[0012] The second technical solution adopted in this application is: a method for information monitoring using a wearable device based on a millimeter-wave radar, which includes: using the wearable device based on a millimeter-wave radar to detect human vital sign information and / or external environment information; wherein, the wearable device based on a millimeter-wave radar includes a millimeter-wave radar, which is carried on the wearable device and emits and receives millimeter waves to obtain external environment data or human body surface data; a computing unit, which calculates and determines whether the wearable device is worn by a living being or determines the external environment conditions according to the external environment data or human body surface data transmitted by the millimeter-wave radar.

[0013] Optionally, according to the minute motion information collected by the millimeter-wave radar, it is calculated and determined whether the wearable device is worn by a living being.

[0014] Optionally, according to the distance information, speed information, horizontal positioning information, and vertical positioning information collected by the millimeter-wave radar, the external environment conditions are calculated and determined.

[0015] Optionally, when the wearable device is worn by a living being, the reflected waves received by the millimeter-wave radar are used to collect human vital sign data; and, based on the human vital sign data, the vital signs of the wearer are analyzed to implement intelligent functions including fatigue reminder and motion recognition.

[0016] Optionally, the computing unit is carried on a cloud host.

[0017] Optionally, the calculated external environment conditions are returned to the wearable device, and warning functions and environmental recording functions are implemented according to the external environment conditions.

[0018] The beneficial effects that the technical solution of this application can achieve are as follows: Based on minute motion information, this application can determine whether the wearing target is a living being and collect human vital signs data. Additionally, based on 4D monitoring, namely distance, speed, horizontal positioning, and vertical positioning, it can detect the external environment situation, calculate relevant results through algorithms, and feedback the results back to the wearable device to achieve the functions of recording and warning. Therefore, relying on the 5D monitoring technology and the natural advantages of millimeter waves, the application scenario is not limited to wearable devices such as watches and bracelets. It can be integrated into helmets, backpacks, glasses, or even clothing and other decorative accessories to more accurately, quickly sense, obtain, utilize, and distribute information, and ultimately achieve intelligent real-time perception of the surrounding environmental situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of a specific implementation manner of a wearable device based on millimeter-wave radar in this application;

[0021] Figure 2 It is a schematic diagram of the structure of a wearable device based on millimeter-wave radar in this application;

[0022] Figure 3 It is a schematic diagram of a specific implementation manner of a method for information monitoring using a wearable device based on millimeter-wave radar in this application.

[0023] Through the above-mentioned drawings, the clear embodiments of this application have been shown, and there will be more detailed descriptions later. These drawings and textual descriptions are not intended to limit the scope of the concept of this application in any way, but to illustrate the concept of this application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will elaborate on the preferred embodiments of this application in conjunction with the drawings, so that the advantages and features of this application can be more easily understood by those skilled in the art, thereby making the scope of protection of this application more clearly defined.

[0025] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0026] With the continuous application of millimeter-wave radar in industries such as ADAS, IOT, drones, security, and sports, the millimeter-wave radar system has also witnessed very rapid development. Currently, 5D monitoring has been stably achieved, namely the monitoring of distance, speed, horizontal positioning, vertical positioning, and target micro-motion information. Based on the data information of five types of detection targets, we can determine whether the wearing target is a living being and collect human vital sign data based on the micro-motion information. Based on the traditional 4D monitoring, namely distance, speed, horizontal positioning, and vertical positioning, we can detect the external environment and calculate and feedback it to the wearable device through algorithms to achieve the functions of recording and warning.

[0027] Because millimeter-wave radar has the advantages of strong penetration ability, strong anti-interference ability, high spatial resolution, all-weather and full-time operation, and relatively low price, it can withstand the influence and interference of more severe external environments, thus achieving a wider range of application scenarios.

[0028] Therefore, to solve the problems mentioned in the above background technology, this application proposes a wearable device with a millimeter-wave radar and its application method to solve the problems of the prior art.

[0029] Next, the technical solution of this application and how the technical solution of this application solves the above technical problems will be described in detail with specific embodiments. The specific embodiments described below can be combined with each other to form new embodiments. For the same or similar ideas or processes described in one embodiment, they may not be repeated in other certain embodiments. The embodiments of this application will be described below with reference to the accompanying drawings.

[0030] Figure 1 An embodiment of a wearable device with a millimeter-wave radar according to this application is shown.

[0031] Figure 1The wearable device with a millimeter-wave radar shown in the figure includes: a millimeter-wave radar 101, which is mounted on the wearable device and emits and receives millimeter waves to obtain external environment data or human body surface data;

[0032] A calculation unit 102, which calculates and determines whether the person wearing the wearable device is a living being or determines the external environment situation according to the external environment data or human body surface data transmitted by the millimeter-wave radar. This specific implementation does not rely on a camera, does not violate the privacy of others during use, supports gesture recognition, is convenient to use, relies on 5D monitoring technology, has accurate data, a wide detection range, and is not affected by the environment all day long, so the application scenarios are more extensive.

[0033] Specifically, traditional wearable devices use photoelectric sensors to identify living beings or record vital signs, etc. The data collected is closely related to the position of the wearable device on the human body, the degree of close contact with the human skin, and the state of the skin, such as the amount of body hair or sweat. Therefore, traditional wearable devices will change with the activities of the human body, which will lead to inaccurate measurement and recognition. The identification of the wearing target and the collection of vital sign data in this application rely on the micro-motion information feedback based on millimeter waves, and are not restricted to directly contacting the skin or being limited to positions such as wrist veins. Therefore, the external form of the wearable device can be diverse, and its wearing position is also diverse. Using the wearable device of this application and matching different object recognition algorithms of the cloud host, the wearable device is no longer limited to being used for the human body. It can even be a wearable device for pets. For example, using the wearable device of this application to replace the traditional collar of a puppy to become an intelligent collar, recording the vital signs and activity environment of the puppy. Therefore, the wearable device of this application greatly enriches the application scenarios of wearable devices.

[0034] Figure 2 It is a schematic diagram of the structure of a wearable device based on a millimeter-wave radar according to this application. As Figure 2 shown, a millimeter-wave radar is mounted on the wearable device, and the side of the wearable device facing the human body surface when worn is defined as the inner side, and the side facing the external environment is defined as the outer side, and both the inner and outer sides are equipped with radar antennas. Millimeter waves are emitted towards the human body surface. Due to blood flow, human breathing, and different absorption, transmission, and reflection rates of waves by different parts of the human body, a part of the millimeter waves will penetrate the human body, which is called the transmitted wave, and the returned wave reflected back is collected by the receiving antenna of the millimeter-wave radar. The emission and reception principles on the outer side are the same as those on the inner side, and will not be elaborated here.

[0035] The calculation unit is used to calculate and determine whether the person wearing the wearable device is a living being or determine the external environment situation according to the external environment data or human body surface data transmitted by the millimeter-wave radar. Among them, the calculation unit can be directly mounted on the wearable device or stay outside the wearable device, and data interaction is carried out through wireless networks and other means.

[0036] Taking the case of a computing unit being installed on a cloud host, the relevant conditions of a living body are judged and transmitted through the networked cloud host, and the relevant calculations and transmissions of the external environment conditions are carried out. Relying on the 5D monitoring technology and the natural advantages of millimeter waves, the computing unit can perceive, obtain, utilize, and distribute information more accurately and quickly, and finally realize functions such as intelligent real-time dynamic perception of the surrounding environment situation.

[0037] For example, when calculating the external environment, to ensure the maximum exploration of data value, the human micro-motion information collected inside the wearable device and the external environment point cloud data collected outside are integrated by relying on cloud computing and edge computing, and an environmental situation perception record and a warning record are generated. The relevant data is fed back to the display screen or prompt device of the wearable device terminal for the user to view and customize application functions, or a reminder is issued.

[0038] The wearable device of the present application relies on the 4D point cloud imaging technology and can also realize the function of a camera-like device. By forming an image from the obtained point cloud group to identify the surrounding environment, privacy can be ensured while ensuring that the recognition result is more detailed and accurate. For example, other humans in the surrounding environment can be recognized, but unlike a camera, it does not record privacy contents such as the face appearance and clothing of a person. The present application can only recognize the size of the human body as an environmental perception factor, and at the same time, the present application can also recognize environmental factors such as street lamp poles and cars moving or stationary in the surrounding area, realizing real-time perception of the surrounding environment situation, thereby ensuring that the recognition result is more detailed and accurate.

[0039] In a specific embodiment of the present application, according to the minute motion information collected by the millimeter wave radar, it is calculated and judged whether the object wearing the wearable device is a living body.

[0040] Furthermore, when the object wearing the wearable device is a living body, human body sign data is collected through the return wave received by the millimeter wave radar; and, based on the human body sign data, the signs of the wearer are analyzed to realize intelligent functions including fatigue reminder and motion recognition.

[0041] Specifically, minute remote motion information is obtained by analyzing the return wave, and based on the minute remote motion information, it can be determined whether the wearing target is a living body. When the wearing target is a living body, human body sign data is collected. The human body sign data is transmitted to the computing unit for analysis and processing to realize intelligent functions including fatigue reminder and motion recognition.

[0042] For example, a networked cloud host based on tiny telemetry information and wearable devices can rely on the collected data to achieve rich applications such as heart rate collection and extended fatigue reminder and motion recognition recording of traditional wearable devices. Moreover, due to the advantages of millimeter waves themselves, it can withstand more severe external environmental impacts and change interferences, making data collection more accurate, and thus making the analyzed and processed results more accurate.

[0043] In a specific embodiment of the present application, according to the distance information, speed information, horizontal positioning information, and vertical positioning information collected by the millimeter-wave radar, the external environmental conditions are calculated and judged.

[0044] Furthermore, the calculated external environmental conditions are returned to the wearable device, and warning functions and environmental recording functions are implemented according to the external environmental conditions.

[0045] Specifically, based on the external environmental return wave, distance information, speed information, horizontal positioning information, and vertical positioning information are analyzed and processed. Based on 4D monitoring, namely distance, speed, horizontal positioning, and vertical positioning, the situation of the detected external environment is calculated through the algorithm of the networked cloud host and fed back to the wearable device to achieve the functions of environmental recording and emergency warning. For example, by adjusting the transmission power, environmental perception at different distances or even beyond the line of sight can be achieved. Using a millimeter-wave radar arranged behind the human line of sight can achieve environmental perception in the blind spot of the field of view, which greatly enhances the detection range. Moreover, the present application supports gesture recognition, is more convenient to use, does not rely on a camera, does not infringe on the privacy of others, is not affected by the environment all day long, and has a wider application scenario.

[0046] The present application can determine whether the wearing target is a living body based on tiny motion information and collect human vital sign data when the wearing target is a living body; based on 4D monitoring, namely distance, speed, horizontal positioning, and vertical positioning, the situation of the external environment can be detected and the detected external environmental situation can be fed back to the wearable device through algorithm calculation to achieve the functions of recording and warning. Relying on 5D monitoring technology and the natural advantages of millimeter waves, the application scenario of the present application is no longer limited to wearable devices such as watches and bracelets, and can be integrated into helmets, backpacks, glasses, and even clothing and other decorative accessories, so as to more accurately, quickly sense, obtain, utilize, and distribute information, and finally achieve intelligent real-time perception of the surrounding environmental situation.

[0047] For example, when wearing a wearable device integrated with a millimeter-wave radar during outdoor cycling, through the environmental perception ability of the wearable device, dynamic perception of the environmental situation beyond the line of sight can be achieved. By perceiving the blind spot of the view behind the body, the environmental situation behind the body can be perceived, which greatly enhances the cycling safety of cyclists. This application makes the wearable device no longer a traditional sports and health record. By perceiving, acquiring, utilizing, and distributing these 5D dimension information, this application can further promote the application scenarios of the wearable device, realize intelligent real-time dynamic perception of the surrounding environmental situation, and at the same time be able to integrate various application software to achieve more extensive application functions, meeting various market requirements for wearable devices.

[0048] Figure 3 A specific implementation manner of a method for information monitoring using a wearable device based on a millimeter-wave radar according to this application is shown.

[0049] In Figure 3 In the shown specific implementation manner, the method for information monitoring using a wearable device based on a millimeter-wave radar mainly includes: S301, detecting human body sign information and / or external environmental information using a wearable device based on a millimeter-wave radar; wherein, the wearable device based on a millimeter-wave radar includes a millimeter-wave radar, which is mounted on the wearable device and emits and receives millimeter waves to obtain external environmental data or human body surface data; a calculation unit, which calculates and determines whether the person wearing the wearable device is a living body or determines the external environmental situation according to the external environmental data or human body surface data transmitted by the millimeter-wave radar.

[0050] In a specific embodiment of this application, according to the minute motion information collected by the millimeter-wave radar, it is calculated and determined whether the person wearing the wearable device is a living body.

[0051] In a specific embodiment of this application, according to the distance information, speed information, horizontal positioning information, and vertical positioning information collected by the millimeter-wave radar, the external environmental situation is calculated and determined.

[0052] In a specific embodiment of this application, when the person wearing the wearable device is a living body, human body sign data is collected through the return wave received by the millimeter-wave radar; and, according to the human body sign data, the signs of the wearer are analyzed to realize intelligent functions including fatigue reminder and motion recognition.

[0053] In a specific embodiment of this application, the calculation unit is mounted on a cloud host.

[0054] In a specific embodiment of this application, the calculated external environmental situation is returned to the wearable device and warning functions and environmental recording functions are realized according to the external environmental situation.

[0055] The method for information monitoring using a wearable device based on a millimeter-wave radar provided by this application can be used for the wearable device based on a millimeter-wave radar described in any of the above embodiments. The implementation principles and technical effects are similar and will not be elaborated here.

[0056] In several embodiments provided by this application, it should be understood that the disclosed device and method can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed mutual coupling or direct coupling or communication connection can be through some interfaces. The indirect coupling or communication connection of the device or unit can be in an electrical, mechanical or other form.

[0057] The above are only the embodiments of this application and do not limit the patent scope of this application. Any equivalent structural transformation made using the specification and drawings of this application, or directly or indirectly applied in other related technical fields, is equally included in the patent protection scope of this application.

Claims

1. A wearable device based on millimeter wave radar, characterized in that: include: Millimeter-wave radar, which is carried on wearable devices and transmits and receives millimeter waves to obtain external environment data or human body surface data; A calculation unit calculates and determines whether the person wearing the wearable device is a living body or determines the external environment conditions based on the external environment data or human body surface data transmitted by the millimeter wave radar.

2. The wearable device based on millimeter wave radar according to claim 1, characterized in that: Based on the tiny movement information collected by the millimeter wave radar, it is calculated and determined whether the person wearing the wearable device is a living being.

3. The wearable device based on millimeter wave radar according to claim 1, characterized in that: The external environment conditions are calculated and judged based on the distance information, speed information, horizontal positioning information and vertical positioning information collected by the millimeter wave radar.

4. The wearable device based on millimeter wave radar according to claim 1, characterized in that: When the wearable device is worn by a living person, the return waves received by the millimeter wave radar are used to collect human body vital sign data; and The wearer's physical signs are analyzed based on the human body sign data to achieve intelligent functions including fatigue reminder and exercise recognition.

5. The wearable device based on millimeter wave radar according to claim 1, characterized in that: The computing unit is mounted on a cloud host.

6. The wearable device based on millimeter wave radar according to claim 3, characterized in that: The calculated external environment conditions are returned to the wearable device and the early warning function and environmental recording function are realized according to the external environment conditions.

7. A method for information monitoring using a wearable device based on millimeter wave radar, characterized in that: include: Detect human vital signs and / or external environment information using wearable devices based on millimeter wave radar; Wherein, the wearable device based on millimeter wave radar includes: Millimeter-wave radar, which is carried on wearable devices and transmits and receives millimeter waves to obtain external environment data or human body surface data; A calculation unit calculates and determines whether the person wearing the wearable device is a living body or determines the external environment conditions based on the external environment data or human body surface data transmitted by the millimeter wave radar.

8. The method for information monitoring using a wearable device based on millimeter wave radar according to claim 7, characterized in that: Based on the tiny movement information collected by the millimeter wave radar, it is calculated and determined whether the person wearing the wearable device is a living being.

9. The method for information monitoring using a wearable device based on millimeter wave radar according to claim 7, characterized in that: The external environment conditions are calculated and judged based on the distance information, speed information, horizontal positioning information and vertical positioning information collected by the millimeter wave radar.

10. The method for information monitoring using a wearable device based on millimeter wave radar according to claim 7, characterized in that: When the wearable device is worn by a living person, the return waves received by the millimeter wave radar are used to collect human body vital sign data; and The wearer's physical signs are analyzed based on the human body sign data to achieve intelligent functions including fatigue reminder and exercise recognition.

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