Personally customized alarm system using biological information and movement information based on Doppler signal

Abstract

The present invention relates to a personalized alarm system using biological information and movement information based on Doppler signals, comprising a device for acquiring biological signal and movement signal information using Doppler signals, a server, and a guardian terminal.

Description

Technical Field

[0001] The present invention relates to a personalized alarm system that uses biological information and movement signal information acquired based on Doppler signals to notify of dangerous situations based on individual statistics. Background Art

[0002] The number of people in need of care and support has been increasing in South Korean society. These individuals, such as the elderly, people with disabilities, and those living alone, require assistance in emergencies. A recent survey found that the elderly population exceeds 9 million, while those living alone and registered people with disabilities exceed 6.6 million and 2.6 million, respectively. Furthermore, the number of people who died alone, without a cohabiting partner, has exceeded 20,000.

[0003] Furthermore, due to the increasing use of personal devices and the need for personal health management, various solutions and applications have recently been released that collect personal health management data and use it to provide customized health management data. To collect this personalized health management data, wireless devices or wearable devices are required. Wireless devices acquire health management data from a relatively close position to the body, often eliminating the need for pre-processing of the measured data. However, wearable devices measure the user's physical activity information from a distance, increasing the likelihood of noise in the measured data and making it difficult to distinguish subtle differences.

[0004] Furthermore, existing danger alarm devices for elderly people living alone assume generalized danger situations and are not individually customized. Therefore, there is a disadvantage in that personalized danger notification services cannot be provided. Summary of the Invention

[0005] Technical problem to be solved by the invention

[0006] To address the problems of the prior art described above, one embodiment of the present invention provides a device for acquiring biological signal and motion signal information using Doppler signals. The device radiates a radar signal toward an object and analyzes the Doppler signal generated by the reflected wave acquired by reflecting the radiated radar signal. Thus, the device can accurately acquire the biological signal or motion signal information of the object through the Doppler signal.

[0007] Furthermore, the present invention provides personalized customized danger situations based on the biological information and movement information derived by the biological signal and movement signal information acquisition device using the Doppler signal.

[0008] Technical methods to solve problems

[0009] The personalized alarm system of the present invention may include a device for acquiring biological signal and movement signal information using Doppler signals, a server, and a guardian terminal.

[0010] The biological signal and motion signal information acquisition device using Doppler signals may include: a Doppler signal acquisition unit, which radiates a radar signal to an object, acquires a signal reflected from the radar signal to acquire a Doppler signal, and processes the Doppler signal to acquire a first phase Doppler signal and a second phase Doppler signal; a Doppler signal processing unit, which processes the first phase Doppler signal and the second phase Doppler signal respectively to acquire first signal information and second signal information; and a signal information output unit, which acquires the first signal information and the second signal information, and uses a preset operation rule to analyze the first signal information and the second signal information respectively to acquire biological signal information and motion signal information.

[0011] The server collects statistics of the time a household spends in each space based on the movement signal information and the biological signal information to obtain lifestyle information, and sets a living space and a dangerous space based on the lifestyle information.

[0012] The server can obtain lifestyle information by counting the time the subject spends in each space based on the mobile signal information transmitted by the organism and mobile signal information acquisition device installed in each space of a home, and set the space where the subject spends the longest time as the first living space, the toilet or bathroom as the first dangerous space, the entrance hall as the second dangerous space, and a space that is neither the first dangerous space nor the second dangerous space and in which the subject spends less time than in the first living space as the second living space.

[0013] When, based on the lifestyle information, the subject stays in the first dangerous space for n minutes in the first time period, the server may generate a first alarm signal if the subject stays in the first dangerous space for more than 5n minutes in the first time period.

[0014] When the subject has stayed in the second dangerous space for n minutes based on the lifestyle information, the server may generate a second alarm signal if the subject has stayed in the second dangerous space for more than 10n minutes.

[0015] The server may generate a third alarm signal if a ratio of a time period during which the subject stays in the first living space to a ratio of a time period during which the subject leaves the first living space is greater than eight times.

[0016] If the activity level of the subject decreases during a preset time period, the server may generate a fourth alarm signal.

[0017] The server may determine, based on the movement signal information, that the activity amount has occurred if the movement speed of the object in the movement signal is greater than a preset value or the area of ​​the moving object exceeds a preset range.

[0018] The server can count and derive the maximum heart rate and respiratory rate, minimum heart rate and respiratory rate, and average heart rate and respiratory rate in the sleeping and non-sleeping states based on the mobile signal information and the biological signal information, and determine the normal range of the object's heart rate and respiratory rate in the sleeping and non-sleeping states based on the counted maximum heart rate and respiratory rate, minimum heart rate and respiratory rate, and average heart rate and respiratory rate in the sleeping and non-sleeping states, and generate a fourth alarm signal if the derived heart rate and respiratory rate exceed the normal range in the sleeping or non-sleeping state.

[0019] The personalized alarm system may further include an external terminal that transmits motion information of the object.

[0020] The server can receive the age, gender, exercise information, medication information and weight information of the subject from the guardian terminal, determine a first heart rate range based on the age of the subject in the non-sleep state, and then, if the gender of the subject is female, determine a second heart rate that is corrected by 5 to 10% higher than the first heart rate, and if the gender of the subject is male, determine a third heart rate that is corrected by 5 to 10% lower than the first heart rate. Then, based on the exercise information transmitted and received from the external terminal, when it is judged that the subject exercises with a predetermined amount or more and within a predetermined period, determine a fourth heart rate that is corrected by 5 to 10% lower than the second heart rate, and determine a fifth heart rate that is corrected by 5 to 10% lower than the third heart rate. Then, based on the medication information and weight information of the subject, determine a sixth heart rate that corrects the fourth heart rate, and determine a seventh heart rate that corrects the fifth heart rate. If the sixth heart rate and the seventh heart rate exceed the preset range, it is judged that an emergency situation has occurred and a fifth alarm signal is generated.

[0021] Effects of the Invention

[0022] According to one embodiment of the present invention, a personalized alarm system utilizing biological information and movement information based on Doppler signals has the following effects: a radar signal is radiated toward an object, and a Doppler signal generated by a reflected wave obtained by reflecting the radiated radar signal is analyzed, thereby being able to accurately obtain the biological signal or movement signal information of the object through the Doppler signal.

[0023] The personalized alarm system of the present invention, which utilizes biological information and movement information based on Doppler signals, has the following effects: based on the living habit information statistically collected according to the individual's situation, it can differentiate individual dangerous situations and inform the guardian of the dangerous situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A block diagram of a personalized alarm system using biological information and movement information based on Doppler signals according to an embodiment of the present invention;

[0025] Figure 2 is a block diagram of a device for acquiring biological signal and movement signal information using Doppler signals according to an embodiment of the present invention;

[0026] Figure 3 for Figure 2 A block diagram of a Doppler signal acquisition unit;

[0027] Figure 4 for Figure 2 A block diagram of a Doppler signal processing unit;

[0028] Figure 5 is a sequence diagram of a method for acquiring biological signal and movement signal information using Doppler signals according to an embodiment of the present invention;

[0029] Figure 6 for Figure 5 A sequence diagram of step S11;

[0030] Figure 7 for Figure 5 The sequence diagram of step S13 is shown in FIG. DETAILED DESCRIPTION

[0031] Hereinafter, some embodiments of the present invention will be described in detail with reference to the illustrative drawings. When assigning reference symbols to the constituent elements of each drawing, the same symbols are assigned to the same constituent elements as much as possible even if they are represented in different drawings. In addition, when describing the embodiments, if it is determined that a detailed description of the related well-known structure or function may confuse the technical idea of ​​the present invention, its detailed description will be omitted. If "including", "having", "forming", etc. are mentioned in this specification, other parts may be added as long as "only to" is not used. If a constituent element is represented in the singular, it includes the case where it is included in the plural as long as there is no special explicit recording matter.

[0032] Furthermore, when describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are used only to distinguish the components from other components and do not limit the nature, order, or number of the corresponding components.

[0033] When describing the positional relationship between components, if it is stated that two or more components are "connected," "coupled," or "connected," the two or more components may be directly "connected," "coupled," or "connected." However, it may also be understood that the two or more components are "connected," "coupled," or "connected" by virtue of the "interposition" of other components. In this context, the other components may also be included in one or more of the two or more components that are "connected," "coupled," or "connected" to each other.

[0034] When describing the temporal flow of relations related to constituent elements, methods of action, or methods of production, for example, when describing temporal sequence relations or flow sequence relations using phrases such as "afterwards", "then", "next", and "before", situations in which there is no continuity may also be included as long as "immediately" or "directly" is not used.

[0035] Furthermore, when referring to numerical values ​​or corresponding information (e.g., levels, etc.) concerning constituent elements, even if there is no explicit description otherwise, the numerical values ​​or corresponding information include the range of errors that may occur due to various factors (e.g., process factors, internal or external impacts, noise, etc.).

[0036] According to an embodiment of the present invention, a personalized alarm system 100 using biological and movement information based on Doppler signals includes: a biological and movement signal information acquisition device 10 using Doppler signals, a server 20 , and a guardian terminal 30 .

[0037] 1. Bio-signal and motion signal information acquisition device 10 using Doppler signals

[0038] Figures 2 to 4 FIG. 1 shows an embodiment of a biological signal and movement signal information acquisition device 10 using Doppler signals according to the present invention. Figure 2 is a block diagram of a device 10 for acquiring biological signal and movement signal information using Doppler signals according to an embodiment of the present invention; Figure 3 for Figure 2 A block diagram of a Doppler signal acquisition unit; Figure 4 for Figure 2 Block diagram of the Doppler signal processing unit.

[0039] The device 10 for acquiring biometric and mobile signal information using Doppler signals can be installed in multiple locations within a home. Preferably, the device 10 can be installed in the bedroom, living room, room, bathroom, and entrance of the home.

[0040] Furthermore, the Doppler signal-based biometric and motion signal information acquisition device 10 can be installed on the ceiling, enabling acquisition of biometric and motion signal information over a wider range. Furthermore, depending on the situation, multiple Doppler signal-based biometric and motion signal information acquisition devices 10 can be installed in a single space. For example, the Doppler signal-based biometric and motion signal information acquisition device 10 can be installed on the bathroom ceiling or walls. This installation offers the advantage of more accurately detecting falls.

[0041] The following use Figures 2 to 4 The biological signal and movement signal information acquisition device using Doppler signals of the present invention will be described in more detail.

[0042] According to an embodiment of the present invention, a device 10 for acquiring biological and motion signal information using Doppler signals emits a radar signal to an object, acquires a Doppler signal, and performs multiple filtering and amplification processes on the acquired Doppler signal to acquire biological and motion signals. Figure 2 As shown, a device 10 for acquiring biological signal and movement signal information using Doppler signals according to an embodiment of the present invention may include: a Doppler signal acquiring unit 11 , a Doppler signal processing unit 12 and a signal information output unit 13 .

[0043] The Doppler signal acquisition unit 11 radiates a radar signal toward an object, acquires a signal reflected from the radar signal, and acquires a Doppler signal. The Doppler signal is then processed to acquire a first phase Doppler signal and a second phase Doppler signal.

[0044] The radar signal is a Doppler signal generated when an object moves. The Doppler signal acquisition unit 11 of the present invention can use the characteristics of the above-mentioned Doppler radar to release the radar signal to the object and obtain the Doppler signal through the reflected signal. To this end, Figure 3 As shown, the Doppler signal acquisition unit 11 according to an embodiment of the present invention may include: a radar signal radiation module 11A, a Doppler signal conversion module 11B and a Doppler signal separation module 11C.

[0045] The radar signal radiating module 11A can radiate a radar signal toward an object, and the Doppler signal converting module 11B can obtain a Doppler signal by receiving the radar signal reflected from the object. In one embodiment of the present invention, a 24 GHz radar signal can be used to obtain the Doppler signal.

[0046] The Doppler signal separation module 11C processes the Doppler signal received from the Doppler signal conversion module 11B to obtain a first phase Doppler signal and a second phase Doppler signal. After processing, the first phase Doppler signal and the second phase Doppler signal can form a phase difference of 90 degrees.

[0047] After the Doppler signal acquisition unit 11 acquires the first phase Doppler signal and the second phase Doppler signal, the Doppler signal processing unit 12 according to one embodiment of the present invention processes the first phase Doppler signal and the second phase Doppler signal, respectively, to acquire first signal information and second signal information. The first signal information and the second signal information can be acquired from the first phase Doppler signal and the second phase Doppler signal, respectively.

[0048] The first signal information and the second signal information obtained by the first phase Doppler signal can be defined as 1-1 signal information and 1-2 signal information, and the first signal information and the second signal information obtained by the second phase Doppler signal can be defined as 2-1 signal information and 2-2 signal information.

[0049] Here, the 1-1 signal information may be heart rate, and the 2-1 signal information may be respiratory rate information.

[0050] Furthermore, the 1-2 signal may be a moving speed, and the 2-2 signal may be an area of ​​a moving object.

[0051] For this reason, Figure 4 As shown, the Doppler signal processing unit 12 of the present invention may include a first Doppler signal processing module 12A, a second Doppler signal processing module 12B, and a third Doppler signal processing module 12C. For ease of explanation, the Doppler signal processing unit 12 of the present invention is described below using an example having three or more Doppler signal processing modules. However, the present invention is not limited thereto and may also operate using N Doppler signal processing modules set by a manager.

[0052] The first Doppler signal processing module 12A performs the first filtering and the first amplification on the first phase Doppler signal and the second phase Doppler signal to obtain a 1-1 phase Doppler processed signal and a 2-1 phase Doppler processed signal.

[0053] The first Doppler signal processing module 12A processes the first phase Doppler signal and the second phase Doppler signal. In the present invention, a first Doppler signal processing module 12A processes the first and second phase Doppler signals, but the present invention is not limited thereto. Figure 7As shown, a 1-1 Doppler signal processing module for processing the first phase Doppler signal and a 1-2 Doppler signal processing module for processing the second phase Doppler signal may also be provided.

[0054] The first filtering performed by the first Doppler signal processing module 12A may be a low-pass filter (LPF) using a filter within a frequency band set by a manager. Furthermore, the first amplification performed by the first Doppler signal processing module 12A may be amplification of the input first and second phase Doppler signals by an amplification factor set by a manager. In one embodiment of the present invention, the first Doppler signal processing module 12A may utilize an active filter, which utilizes line characteristics to simultaneously perform amplification and filtering.

[0055] After the first filtering and first amplification generate the 1-1 phase Doppler processed signal and the 2-1 phase Doppler processed signal, the generated 1-1 phase Doppler processed signal and the 2-1 phase Doppler processed signal are transmitted via branch lines to the second Doppler signal processing module 12B and the third Doppler signal processing module 12C. The second Doppler signal processing module 12B and the third Doppler signal processing module 12C are connected in parallel. Both the second Doppler signal processing module 12B and the third Doppler signal processing module 12C can process the 1-1 phase Doppler processed signal and the 2-1 phase Doppler processed signal, but the two modules perform different processing.

[0056] More specifically, the second Doppler signal processing module 12B and the third Doppler signal processing module 12C may be connected to the first Doppler signal processing module 12A, and the second Doppler signal processing module 12B and the third Doppler signal processing module 12C may be connected to each other in parallel.

[0057] Because in one embodiment of the present invention, the second Doppler signal processing module 12B and the third Doppler signal processing module 12C are respectively configured to process signals below a predetermined frequency or above a predetermined reference frequency, in one embodiment of the present invention, if the second Doppler signal processing module 12B processes signals below a predetermined frequency, the third Doppler signal processing module 12C can process signals above a predetermined frequency. This simply means that processing in different frequency bands is performed by different Doppler signal processing modules, and the second Doppler signal processing module 12B and the third Doppler signal processing module 12C can also process in opposite frequency bands.

[0058] Furthermore, by employing the aforementioned parallel connection structure, in one embodiment of the present invention, the second Doppler signal processing module 12B and the third Doppler signal processing module 12C can also have different amplification ratios. To this end, each of the second Doppler signal processing module 12B and the third Doppler signal processing module 12C can be connected to an additional Doppler signal processing module. The fourth Doppler signal processing module 12D, described later in the present invention, can be the aforementioned additional Doppler signal processing module.

[0059] The second Doppler signal processing module 12B performs second filtering and second amplification on the 1-1 phase Doppler processed signal and the 2-1 phase Doppler processed signal to obtain 1-1 signal information and 2-1 signal information.

[0060] The second Doppler signal processing module 12B processes the 1-1 phase Doppler processed signal and the 2-1 phase Doppler processed signal. The present invention describes a second Doppler signal processing module 12B that processes the 1-1 and 2-1 phase Doppler processed signals, but the present invention is not limited thereto. Figure 7 As shown, the 2-1 Doppler signal processing module for processing the 1-1 phase Doppler signal and the 2-2 Doppler signal processing module for processing the 2-1 phase Doppler signal can also be formed separately.

[0061] The second filtering performed in the second Doppler signal processing module 12B may be a high-pass filter (HPF) process that removes DC components from the 1-1 phase Doppler processed signal and the 2-1 phase Doppler processed signal and applies a filter of a frequency band set by a manager.

[0062] Furthermore, the second amplification performed in the second Doppler signal processing module 12B may be amplifying the input 1-1 phase Doppler processed signal and the 2-2 phase Doppler processed signal at an amplification rate set by a manager. As one embodiment of the present invention, the second Doppler signal processing module 12B may utilize an active filter. An active filter is a filter that simultaneously performs amplification and filtering by utilizing line characteristics.

[0063] The third Doppler signal processing module 12C obtains the same signals as those processed by the second Doppler signal processing module 12B, namely, the 1-1 phase Doppler processed signal and the 2-1 phase Doppler processed signal, and performs a third filter and a third amplification on the obtained 1-1 phase Doppler processed signal and the 2-1 phase Doppler processed signal to obtain 1-2 signal information and 2-2 signal information.

[0064] The third Doppler signal processing module 12C processes the 1-1 phase Doppler processed signal and the 2-1 phase Doppler processed signal. In addition, the present invention describes that the third Doppler signal processing module 12C processes the 1-1 and 2-1 phase Doppler processed signals. However, the present invention is not limited to this. Figure 7 As shown, the 3-1 Doppler signal processing module for processing the 1-1 phase Doppler signal and the 3-2 Doppler signal processing module for processing the 2-1 phase Doppler signal can be formed separately.

[0065] The third filtering performed by the third Doppler signal processing module 12C may include a low-pass filter (LPF) and a high-pass filter (HPF) using filters within a frequency band set by a management personnel. Furthermore, the third amplification performed by the third Doppler signal processing module 12C may include amplifying the input 1-1 and 2-1 phase Doppler processed signals by an amplification factor set by the management personnel. According to one embodiment of the present invention, the third Doppler signal processing module 12C may utilize an active filter, which utilizes line characteristics to simultaneously perform amplification and filtering.

[0066] Furthermore, in another embodiment of the present invention, the following may also be included: Figure 4 The fourth Doppler signal processing module 12D is shown. The fourth Doppler signal processing module 12D processes the processing results of the second Doppler signal processing module 12C. If the fourth Doppler signal processing module 12D is provided, the first Doppler signal processing module 12A, the second Doppler signal processing module 12B, and the fourth Doppler signal processing module 12D can be connected in series. Furthermore, the signals output by the second Doppler signal processing module 12B can be the 1-2 phase Doppler processed signal and the 2-2 phase Doppler processed signal, which are not the 1-1 signal information and the 2-1 signal information.

[0067] When the 1-2 phase Doppler processed signal and the 2-2 phase Doppler processed signal are obtained from the second Doppler signal processing module 12B, the fourth Doppler signal processing module 12D performs fourth filtering and fourth amplification on the 1-2 phase Doppler processed signal and the 2-2 phase Doppler processed signal to obtain 1-1 signal information and 2-1 signal information.

[0068] The fourth Doppler signal processing module 12D performs processing on the 1-2 phase Doppler processing signal and the 2-2 phase Doppler processing signal. In addition, the present invention describes that the fourth Doppler signal processing module 12D processes the 1-2 and 2-2 phase Doppler processing signals, but the present invention is not limited to this. Figure 7As shown, a 4-1 Doppler signal processing module for processing the 1-2 phase Doppler signal and a 4-2 Doppler signal processing module for processing the 2-2 phase Doppler signal may also be formed respectively.

[0069] The 4th filtering performed in the 4th Doppler signal processing module 12D can be a processing in which the 1-2 phase Doppler processing signal and the 2-2 phase Doppler processing signal are subjected to a filter of a frequency band range set by a manager and a low-pass filter LPF is applied, and the 4th amplification can be a processing in which the input 1-2 phase Doppler processing signal and the 2-2 phase Doppler processing signal are amplified by an amplification multiple preset by a manager.

[0070] The fourth Doppler signal processing module 12D according to an embodiment of the present invention may use an active filter. The active filter is a filter that performs amplification and filtering simultaneously by utilizing line characteristics.

[0071] Furthermore, the fourth Doppler signal processing module 12D may apply a DC offset voltage set by a manager to the signal subjected to the third filtering and the second amplification.

[0072] In one embodiment of the present invention, the 1-1 signal information and the 2-1 signal information may be information including biological motion information, and the 1-2 signal information and the 2-2 signal information may be information including movement motion information.

[0073] Therefore, the signal information output unit 13 of one embodiment of the present invention obtains the first signal information and the second signal information, and uses a preset algorithm to analyze the first signal information and the second signal information to obtain the biological signal information and the movement signal information.

[0074] The signal information output unit 13 of the present invention obtains the 1-1 signal information and the 2-1 signal information as the first signal information, and obtains the 1-2 signal information and the 2-2 signal information as the second signal information. That is, in the present invention, the first signal information can be defined as information including biological motion information, and the second signal information can be defined as information including movement motion information.

[0075] The signal information output unit 13 can apply the acquired biological motion information and movement motion information to a pre-set algorithm, thereby acquiring biological signal information and movement signal information from each motion information and outputting the acquired biological signal information and movement signal information. The acquired biological signal information and movement signal information from the signal information output unit 13 can be transmitted to the communication unit 14.

[0076] The communication unit 14 may transmit the biological signal information and the movement signal information received from the signal information output unit 13 to the server 20 through wired communication or wireless communication.

[0077] 2. Method for acquiring biological signal and motion signal information using Doppler signals

[0078] Figures 5 to 7 FIG. 1 illustrates an embodiment of a method for acquiring biological signal and movement signal information using Doppler signals according to the present invention. Figure 5 is a sequence diagram of a method for acquiring biological signal and movement signal information using Doppler signals according to an embodiment of the present invention; Figure 6 for Figure 5 A sequence diagram of step S11; Figure 7 for Figure 5 The sequence diagram of step S13 is shown in FIG.

[0079] The following use Figures 5 to 7 The method for obtaining biological signal and movement signal information using Doppler signal of the present invention is described in detail. Figure 2 However, the present invention is not limited thereto, and devices, systems, and terminal equipment that can perform various similar functions or actions can also be used.

[0080] According to a method 10 for acquiring biological and motion signal information using Doppler signals according to an embodiment of the present invention, a radar signal is radiated toward an object to acquire a Doppler signal, and the acquired Doppler signal is subjected to multiple filtering and amplification processes to acquire biological and motion signals. Figure 5 As shown, a method 10 for acquiring biological signal and movement signal information using Doppler signals according to an embodiment of the present invention may include: a Doppler signal acquiring step S11, a Doppler signal processing step S13, and a signal information output step S15.

[0081] In the Doppler signal acquisition step S11 , a Doppler signal acquisition unit radiates a radar signal toward an object, acquires a signal reflected from the radar signal, and processes the Doppler signal to acquire a first phase Doppler signal and a second phase Doppler signal.

[0082] If it is a radar signal, a Doppler signal is generated when the object moves. The Doppler signal acquisition step S11 of the present invention utilizes the characteristics of the above-mentioned Doppler radar to radiate the radar signal to the object and acquire the Doppler signal through the reflected signal. To this end, Figure 6 As shown, the Doppler signal acquisition step S11 according to an embodiment of the present invention may include: a radar signal emission step S111 , a Doppler signal conversion step S113 , and a Doppler signal separation step S115 .

[0083] The radar signal emitting step S111 emits a radar signal toward an object, and the Doppler signal converting step S113 obtains the radar signal reflected from the object to obtain a Doppler signal. In one embodiment of the present invention, a 24 GHz radar signal can be used to obtain the Doppler signal.

[0084] The Doppler signal separation step S115 processes the Doppler signal obtained from the Doppler signal conversion step S113 to obtain a first phase Doppler signal and a second phase Doppler signal. The first phase Doppler signal and the second phase Doppler signal are processed so as to have a phase difference of 90°.

[0085] After obtaining the first and second phase Doppler signals in the Doppler signal acquisition step S11, the Doppler signal processing step S13 according to one embodiment of the present invention processes the first and second phase Doppler signals using a Doppler signal processing unit to obtain first and second signal information. The first and second signal information can be obtained from the first and second phase Doppler signals, respectively.

[0086] The first signal information and the second signal information obtained by the first phase Doppler signal can be defined as 1-1 signal information and 1-2 signal information, and the first signal information and the second signal information obtained by the second phase Doppler signal can be defined as 2-1 signal information and 2-2 signal information.

[0087] For this reason, Figure 7 As shown, the Doppler signal processing step S13 of the present invention may include: a first Doppler signal processing step S131, a second Doppler signal processing step S133, and a third Doppler signal processing step S135. For ease of explanation, the Doppler signal processing step S13 of the present invention uses three or more Doppler signal processing steps. However, the present invention is not limited thereto and may also be executed using N Doppler signal processing steps set by a manager.

[0088] The first Doppler signal processing step S131 performs first filtering and first amplification on the first phase Doppler signal and the second phase Doppler signal to obtain a 1-1 phase Doppler processed signal and a 2-1 phase Doppler processed signal.

[0089] The first Doppler signal processing step S131 processes the first phase Doppler signal and the second phase Doppler signal. Although the present invention describes a first Doppler signal processing step S131 that processes the first and second phase Doppler signals, the present invention is not limited thereto. Figure 7As shown, a 1-1 Doppler signal processing module for processing the 1st phase Doppler signal and a 1-2 Doppler signal processing module for processing the 2nd phase Doppler signal can be provided respectively.

[0090] The first filtering performed in the first Doppler signal processing step S131 may be a low-pass filter (LPF) process using a filter with a frequency band set by a manager. Furthermore, the first amplification performed in the first Doppler signal processing step S131 may be a process of amplifying the input first and second phase Doppler signals by an amplification factor set by a manager. According to one embodiment of the present invention, in the first Doppler signal processing step S131, an active filter may be used to process the Doppler signal. Here, the active filter is a filter that simultaneously performs amplification and filtering by utilizing line characteristics.

[0091] After the first filtering and first amplification steps generate the 1-1 phase Doppler processed signal and the 2-1 phase Doppler processed signal, the generated 1-1 phase Doppler processed signal and the 2-1 phase Doppler processed signal are transmitted via a branch line to the second Doppler signal processing step S133 and the third Doppler signal processing step S135. The second Doppler signal processing step S133 and the third Doppler signal processing step S135 are performed by the second Doppler signal processing module and the third Doppler signal processing module connected in parallel. While both the second Doppler signal processing step S133 and the third Doppler signal processing step S135 can process the 1-1 phase Doppler processed signal and the 2-1 phase Doppler processed signal, the two steps perform different processing.

[0092] More specifically, the second Doppler signal processing module 12B and the third Doppler signal processing module 12C may be connected to the first Doppler signal processing module 12A, and the second Doppler signal processing module 12B and the third Doppler signal processing module 12C may be connected to each other in parallel.

[0093] This is because, in one embodiment of the present invention, the second Doppler signal processing module 12B and the third Doppler signal processing module 12C are respectively configured to process signals below a predetermined frequency or above a predetermined reference frequency. In one embodiment of the present invention, while the second Doppler signal processing module 12B processes signals below a predetermined frequency, the third Doppler signal processing module 12C can process signals above a predetermined frequency. This simply means that processing of different frequency bands is performed by different Doppler signal processing modules, and the second and third Doppler signal processing modules can perform processing of opposite frequency bands.

[0094] Furthermore, by employing the aforementioned parallel connection structure, the second and third Doppler signal processing modules of one embodiment of the present invention can also achieve mutually different amplification ratios. To this end, the second and third Doppler signal processing modules can each be connected to an additional Doppler signal processing module. The fourth Doppler signal processing module described later in the present invention can be the aforementioned additional Doppler signal processing module.

[0095] The second Doppler signal processing step S133 performs second filtering and second amplification on the 1-1 phase Doppler processed signal and the 2-1 phase Doppler processed signal to obtain 1-1 signal information and 2-1 signal information.

[0096] The second Doppler signal processing step S133 processes the 1-1 phase Doppler processed signal and the 2-1 phase Doppler processed signal. In addition, the present invention describes a second Doppler signal processing step S133 that processes the 1-1 and 2-1 phase Doppler processed signals. However, the present invention is not limited thereto. Figure 7 As shown, the 2-1 Doppler signal processing module for processing the 1-1 phase Doppler signal and the 2-2 Doppler signal processing module for processing the 2-1 phase Doppler signal can also be formed separately.

[0097] The second filtering performed in the second Doppler signal processing step S133 may be a high-pass filter (HPF) process that removes a DC component from the 1-1 phase Doppler processed signal and the 2-1 phase Doppler processed signal and applies a filter of a frequency band set by a manager.

[0098] Furthermore, the second amplification performed in the second Doppler signal processing step S133 may be amplifying the input 1-1 phase Doppler processed signal and the 2-2 phase Doppler processed signal by an amplification factor set by a management personnel. In one embodiment of the present invention, an active filter may be used in the second Doppler signal processing step S133. An active filter is a filter that performs both amplification and filtering by utilizing line characteristics.

[0099] In the third Doppler signal processing step S135, the 1-1 phase Doppler processed signal and the 2-1 phase Doppler processed signal of the same signal as the signal processed in the second Doppler signal processing step S133 are obtained, and the obtained 1-1 phase Doppler processed signal and the 2-1 phase Doppler processed signal are subjected to third filtering and third amplification to obtain 1-2 signal information and 2-2 signal information.

[0100] In the third Doppler signal processing step S135, the 1-1 phase Doppler processing signal and the 2-1 phase Doppler processing signal are processed. The present invention describes a third Doppler signal processing step S135 in which the 1-1 and 2-1 phase Doppler processing signals are processed. However, the present invention is not limited thereto. Figure 7 As shown, the 3-1 Doppler signal processing module for processing the 1-1 phase Doppler signal and the 3-2 Doppler signal processing module for processing the 2-1 phase Doppler signal can also be formed separately.

[0101] The third filtering performed in the third Doppler signal processing step S135 may be a low-pass filter (LPF) and a high-pass filter (HPF) using filters within a frequency band set by a manager. Furthermore, the third amplification performed in the third Doppler signal processing step S135 may be amplification of the input 1-1 and 2-1 phase Doppler processed signals by an amplification factor set by a manager. In one embodiment of the present invention, the third Doppler signal processing step S135 may employ an active filter, which utilizes line characteristics to simultaneously perform amplification and filtering.

[0102] And, as Figure 7 As shown, another embodiment of the present invention further includes a fourth Doppler signal processing step S137. The fourth Doppler signal processing step S137 can process the results of the second Doppler signal processing step S135. If the fourth Doppler signal processing step S137 is present, the first Doppler signal processing step S131, the second Doppler signal processing step S133, and the fourth Doppler signal processing step S137 can be connected in series. Furthermore, the signal output from the second Doppler signal processing step S133 can be a 1-2 phase Doppler processed signal and a 2-2 phase Doppler processed signal, which are not the 1-1 signal information and the 2-1 signal information.

[0103] When the 1-2 phase Doppler processed signal and the 2-2 phase Doppler processed signal are obtained from the 2nd Doppler signal processing step S133, the 4th Doppler signal processing step S137 performs the 4th filtering and the 4th amplification on the 1-2 phase Doppler processed signal and the 2-2 phase Doppler processed signal to obtain the 1-1 signal information and the 2-1 signal information.

[0104] The fourth Doppler signal processing step S137 performs processing on the 1-2 phase Doppler processed signal and the 2-2 phase Doppler processed signal. In addition, the present invention describes a fourth Doppler signal processing step S137 that performs processing on the 1-2 and 2-2 phase Doppler processed signals, but the present invention is not limited thereto. Figure 7As shown, the 4-1st Doppler signal processing module for processing the 1-2nd phase Doppler signal and the 4-2nd Doppler signal processing module for processing the 2-2nd phase Doppler signal can also be formed separately.

[0105] The 4th filtering performed in the 4th Doppler signal processing step S137 can be a processing in which the 1-2 phase Doppler processing signal and the 2-2 phase Doppler processing signal are subjected to a low-pass filter (LPF) filter with a frequency band set by the management personnel, and the 4th amplification can be a processing in which the input 1-2 phase Doppler processing signal and the 2-2 phase Doppler processing signal are amplified with an amplification multiple preset by the management personnel.

[0106] In one embodiment of the present invention, an active filter may be used in the fourth Doppler signal processing step S137. The active filter is a filter that performs amplification and filtering simultaneously by utilizing line characteristics.

[0107] Furthermore, in the fourth Doppler signal processing step S137 , a DC offset voltage set by a manager may be applied to the signal after the third filtering and the second amplification.

[0108] In one embodiment of the present invention, the 1-1 signal information and the 2-1 signal information may include biological motion information, and the 1-2 signal information and the 2-2 signal information may include movement motion information.

[0109] Therefore, in the signal information output step S15 according to one embodiment of the present invention, the first signal information and the second signal information are obtained using the signal information output unit, and the first signal information and the second signal information are analyzed respectively using a preset operation rule to obtain the biological signal information and the movement signal information.

[0110] In the signal information output step S15 of the present invention, 1-1 signal information and 2-1 signal information can be obtained from the first signal information, and 1-2 signal information and 2-2 signal information can be obtained from the second signal information. That is, in the present invention, the first signal information can be defined as including biological motion information, and the second signal information can be defined as including movement motion information.

[0111] The signal information output step S15 may apply the acquired biological motion information and movement motion information to a preset algorithm, thereby acquiring biological signal information and movement signal information from each motion information and outputting the acquired biological signal information and movement signal information.

[0112] 3. Server 20

[0113] The server may receive the biological signal information and the movement signal information from the communication unit 14 .

[0114] The server 20 may extract the subject's heart rate information and respiratory rate information from the received biological signal information.

[0115] Furthermore, the server 20 may extract the moving speed of the object and the area of ​​the moving object from the moving signal information.

[0116] The device 10 for acquiring biological / mobile signal information using Doppler signals can be installed in various places in a home. Preferably, the device 10 for acquiring biological / mobile signal information using Doppler signals can be installed in a bedroom, living room, room, entrance, bathroom, etc. in a home.

[0117] Here, the biological signal information may be heart rate and / or respiratory rate information.

[0118] Furthermore, the motion signal information is the moving speed of the object and / or the area of ​​the moving object.

[0119] The server 20 can obtain lifestyle information by counting the time spent in each space based on the mobile signal information transmitted from the biometric signal and mobile signal information acquisition devices 10 installed in each space of a home. For example, the server 20 receives mobile signal information from the biometric signal and mobile signal information acquisition devices 10 installed in the bedroom, living room, small room, bathroom, and entryway, and generates lifestyle information based on the count of the time spent in each of these spaces.

[0120] The lifestyle information generated as described above varies depending on the lifestyle habits of each individual, and emergency situations can be predicted based on the information.

[0121] Preferably, the server 20 sets the first living space, the second living space, the first dangerous space, and the second dangerous space based on the lifestyle information.

[0122] The first living space is the space where the subject stays for the longest time, and can be a bedroom or a living room.

[0123] The second living space is neither the first dangerous space nor the second dangerous space, and is a space where the person stays for a shorter time than the person stays in the first living space. For example, the second living space may be a small house.

[0124] The first dangerous space may be a space where the stay time is shorter than that of the first living space, and where statistically most falling accidents occur, and which is not easily visible from the outside, such as a toilet or bathroom.

[0125] The second dangerous space may be a porch where the time spent in the second dangerous space is shorter than that in the first living space and the first dangerous space, where more falling accidents occur, but which is not easily detected from the outside.

[0126] If the time spent in the first or second dangerous space exceeds a predetermined range compared to the lifestyle information, the server 20 may generate a first emergency signal or a second emergency signal. In this case, the predetermined time periods for the first and second dangerous spaces may be different.

[0127] For example, based on the lifestyle information, if the subject spends n minutes in the first dangerous space during the first time period, a first alarm signal may be generated after 5n minutes have passed. For example, if the subject spends an average of 5 minutes in the restroom between 9:00 and 12:00, a first alarm signal may be generated if the subject spends more than 25 minutes in the restroom. Furthermore, if the subject spends an average of 20 minutes in the restroom between 17:00 and 20:00, the server 20 may generate a first alarm signal if the subject spends 100 minutes in the restroom.

[0128] Furthermore, if the time spent in the second dangerous space exceeds a predetermined range compared to the lifestyle information, the server 20 may generate a second alarm signal. For example, if the subject spends n minutes in the second dangerous space based on the lifestyle information, the server 20 may generate a second alarm signal after 10n minutes have passed. For example, if the average time spent in the entrance hall is 2 minutes, the server 20 may generate a second alarm signal if the subject spends 50 minutes there.

[0129] Furthermore, if the ratio of the time the subject spends in the first living space to the time they leave the first living space exceeds a predetermined range, a third alarm signal may be generated. For example, if the lifestyle information shows an average ratio of 7:3 for the time spent in the first living space to the time they leave the first living space, and if the ratio of the time spent in the first living space exceeds 8 within a predetermined range (for example, a ratio of 8.2:1.8 for the time spent in the first living space to the time they leave the first living space), the third alarm signal may be generated.

[0130] If the subject's activity level continues to decrease during a predetermined time period, the server 20 may generate a fourth alarm signal. For example, if the subject's average activity level is 80 from 9:00 to 17:00 based on the lifestyle information, and if the subject's average activity level continues to decrease to 60, 50, 30, and so on during the same time period, the server 20 may generate a fourth alarm signal.

[0131] The activity amount is based on the motion signal information. If the moving speed of the object in the motion signal is above a preset value, it is considered that activity has occurred, or if the area of ​​the moving object in the motion signal exceeds a preset range, it is determined that activity has occurred.

[0132] The server 20 may determine whether the subject is asleep or awake based on the transmitted biological signal information and movement signal information.

[0133] When the moving speed of the object is above a preset range, the area of ​​the moving object is above a preset range, and the time during which the center rate of the biological signal information is above a preset range is above a preset range, the server 20 determines that the object is in a non-sleeping state.

[0134] The server 20 may statistically derive the maximum heart rate and / or respiratory rate, the minimum heart rate and / or respiratory rate, and the average heart rate and / or respiratory rate in a non-sleep state based on the biological signal information.

[0135] Furthermore, the server 20 may statistically derive the maximum heart rate and / or respiratory rate, the minimum heart rate and / or respiratory rate, and the average heart rate and / or respiratory rate during sleep based on the biological signal.

[0136] The server 20 can determine the normal range of heart rate and / or respiratory rate of each subject (individual) in the sleeping and non-sleeping states based on the statistical data. As described above, the normal range of health status can be divided into the sleeping state and the non-sleeping state.

[0137] If the heart rate and / or respiratory rate exceeds the normal range during sleep or non-sleep state, the server 20 may determine that the subject is in an emergency and generate a fourth alarm signal.

[0138] The server 20 may receive the subject's age, gender, exercise information, medication information, and weight information from the guardian terminal 30 .

[0139] First, the server 20 determines a first heart rate range according to the age of the subject in a non-sleep state. Here, the first heart rate range is pre-known information, that is, a heart rate range according to the age of the subject.

[0140] Then, if the transmitted gender information is female, the server 20 determines a second heart rate that is 5-10% higher than the first heart rate for correction. If the transmitted gender information is male, the server 20 determines a third heart rate that is 5-10% lower than the first heart rate for correction.

[0141] The server 20 can then determine the subject's heart rate based on the exercise information received from the external terminal. The external terminal can be a terminal at an exercise facility, such as a gym, that transmits the subject's exercise volume and exercise period information to the server 20. Alternatively, the external terminal can be a wireless terminal worn by the subject that transmits the exercise volume and exercise period information measured by the wireless terminal to the server 20.

[0142] If it is determined that the subject has exercised more than a preset amount of exercise and has exercised within a preset period, the server 20 may determine a fourth heart rate and a fifth heart rate that are corrected by 5 to 10% below the second heart rate and the third heart rate.

[0143] The server 20 may determine a sixth heart rate to correct the fourth heart rate based on the subject's medication information and weight information, and may determine a seventh heart rate to correct the fifth heart rate. For example, if the subject has taken an analgesic containing caffeine, the fourth and fifth heart rates may be corrected to be higher. The correction values ​​may vary based on the amount of caffeine in the medication and the weight information.

[0144] If the sixth heart rate and / or the seventh heart rate exceeds a preset range, the server 20 may determine that an emergency situation has occurred and generate a fifth alarm signal.

[0145] After generating the first to fifth alarm signals, the server 20 may transmit the generated first to fifth alarm signals to the guardian terminal 30 .

[0146] The guardian terminal 30 is a terminal owned by the person protecting the subject. Preferably, if the subject is an elderly person living alone, the guardian terminal 30 may be a terminal owned or possessed by a family member caring for the elderly person. Alternatively, the guardian terminal 30 may be a terminal owned or possessed by a person caring for the subject at a nursing home, government agency, or medical facility.

[0147] The above description is only for the purpose of illustrating the technical idea of ​​the present invention by way of example. A person skilled in the art of the present invention may make various modifications and variations without departing from the essential scope of the present invention. Therefore, the embodiments disclosed in the present invention are only for the purpose of illustrating the technical idea of ​​the present invention and do not limit the technical idea. The above embodiments do not limit the scope of the technical idea of ​​the present invention. The scope of protection of the present invention should be interpreted through the scope of the claims, and all technical ideas within the equivalent scope are included in the scope of rights of the present invention.

Claims

1. A personalized alarm system using biological and movement information based on Doppler signals, comprising a biological and movement signal information acquisition device using Doppler signals, a server, and a guardian terminal, characterized in that: The device for acquiring biological signal and movement signal information using Doppler signals comprises: a Doppler signal acquisition unit that radiates a radar signal toward an object, acquires a signal reflected from the radar signal to acquire a Doppler signal, and processes the Doppler signal to acquire a first phase Doppler signal and a second phase Doppler signal; a Doppler signal processing unit for processing the first phase Doppler signal and the second phase Doppler signal respectively to obtain first signal information and second signal information; and The signal information output unit obtains the first signal information and the second signal information, and analyzes the first signal information and the second signal information using a preset operation rule to obtain biological signal information and movement signal information.

2. The personalized alarm system according to claim 1, characterized in that: The server obtains lifestyle information by counting the time a family spends in each space based on the mobile signal information and the biometric signal information. Then, a living space and a dangerous space are set based on the lifestyle information.

3. The personalized alarm system according to claim 2, characterized in that: The server obtains lifestyle information by counting the time spent in each space by living beings and mobile signal information acquisition devices installed in each space of a home. Furthermore, the space where the subject stayed the longest is set as the first living space. Set the toilet or bathroom as the first dangerous space. Set the entrance as the second dangerous space. A space that is neither the first dangerous space nor the second dangerous space and in which the user stays for a shorter time than the user stays in the first living space is set as a second living space.

4. The personalized alarm system according to claim 3, characterized in that: When, based on the lifestyle information, the time the subject stayed in the first dangerous space during the first time period is n minutes, the server generates a first alarm signal if the time the subject stayed in the first dangerous space during the first time period exceeds 5n minutes. When the object stays in the second dangerous space for n minutes based on the lifestyle information, the server generates a second alarm signal if the object stays in the second dangerous space for more than 10n minutes. The server generates a third alarm signal if a ratio of a time period during which the subject stays in the first living space to a ratio of a time period during which the subject leaves the first living space is greater than eight times.

5. The personalized alarm system according to claim 4, characterized in that: If the activity level of the subject decreases during a predetermined period of time, the server generates a fourth alarm signal. The server determines that the activity amount has occurred if the moving speed of the object in the moving signal is greater than a preset value or the area of ​​the moving object exceeds a preset range based on the moving signal information.

6. The personalized alarm system according to claim 1, characterized in that: The server calculates and derives the maximum heart rate and respiratory rate, the minimum heart rate and respiratory rate, and the average heart rate and respiratory rate in the sleeping and non-sleeping states based on the movement signal information and the biological signal information. Furthermore, based on the statistical maximum heart rate and respiratory rate, minimum heart rate and respiratory rate, and average heart rate and respiratory rate in the sleeping and non-sleeping states, the normal range of the subject's heart rate and respiratory rate in the sleeping and non-sleeping states is determined. Furthermore, if the heart rate and respiratory rate exceeding the normal range are derived in the sleeping or non-sleeping state, a fourth alarm signal is generated.

7. The personalized alarm system according to claim 1, characterized in that: The personalized alarm system further includes an external terminal that transmits the motion information of the object. The server receives the subject's age, gender, exercise information, medication information, and weight information from the guardian terminal. determining a first heart rate range according to the age of the subject in the non-sleep state, Then, if the subject is female, a second heart rate corrected by 5 to 10% higher than the first heart rate is determined, and if the subject is male, a third heart rate corrected by 5 to 10% lower than the first heart rate is determined. Then, based on the exercise information transmitted and received from the external terminal, when it is determined that the subject has exercised at a predetermined amount or more and within a predetermined period, a fourth heart rate is determined to be corrected by lowering the second heart rate by 5 to 10%, and a fifth heart rate is determined to be corrected by lowering the third heart rate by 5 to 10%. Then, based on the medication information and weight information of the subject, a sixth heart rate is determined to correct the fourth heart rate, and a seventh heart rate is determined to correct the fifth heart rate. If the sixth heart rate and the seventh heart rate exceed a preset range, it is determined that an emergency situation has occurred and a fifth alarm signal is generated.

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