Biological information detection system, wearable biological information detection device, and biological information detection method

Abstract

To provide a biological information detection system that does not require complicated work that identification information on all object persons using the system is registered in the system beforehand.SOLUTION: A biological information detection system includes a wearable biological information detection device, a stationary biological information detection device, and a control unit. When data from the stationary biological information detection device is received by first communication means, the control unit calculates a correlation value between first biological information detected by first detection means and second biological information included in the data, and causes the stationary biological information detection device to start monitoring of second biological information included in the data as biological information on a wearer of the wearable biological information detection device when the calculated correlation value satisfies a predetermined correlation condition.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a biological information detection system, a wearable biological information detection device, and a biological information detection method. [Background technology]

[0002] The following Patent Document 1 discloses a technology in which a biometric measuring device that stores specific biometric information associated with a subject's identification information communicates with another biometric measuring device that stores other biometric information associated with the identification information, compares the identification information associated with the specific biometric information with the identification information associated with the other biometric information, and acquires the other biometric information when the two identification information match, and stores the acquired other biometric information in association with the matching identification information. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2014-036747 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the technology of Patent Document 1 mentioned above, in order to centrally manage multiple biometric information of the same subject that was measured separately by multiple biometric measuring devices in association with that subject, it was necessary to carry out the cumbersome task of registering identification information (user ID, etc.) of all subjects using the system in advance into the system. [Means for solving the problem]

[0005] In order to solve the above problems, one embodiment of the biometric information detection system of the present invention is a biometric information detection system comprising a wearable biometric information detection device, a stationary biometric information detection device, and a control unit, wherein the wearable biometric information detection device comprises a first detection means for detecting first biometric information, which is the biometric information of the wearer, and a first communication means for communicating with the stationary biometric information detection device, and the stationary biometric information detection device comprises a second detection means for detecting second biometric information, which is the biometric information of a subject, and a second communication means for transmitting data including the second biometric information, and when the data is received by the first communication means, the control unit calculates a correlation value between the first biometric information detected by the first detection means and the second biometric information included in the data, and when the calculated correlation value satisfies a predetermined correlation condition, causes the wearable biometric information detection device to start monitoring the second biometric information included in the data as the biometric information of the wearer.

[0006] The wearable biological information detection device according to one embodiment of the present invention detects a first biological information, which is biological information of a wearer. a first detection means for detecting biological information of the subject, and a stationary detection means for detecting second biological information which is biological information of the subject. a first communication means for communicating with a stationary biometric information detection device; When data is received from a biological information detection device of the type, the first detection means detects calculating a correlation value between the first biometric information and the second biometric information included in the data; When the calculated correlation value satisfies a predetermined correlation condition, the previous Monitoring the second biological information contained in the data. Get started A control unit.

[0007] One embodiment of the biometric information detection method of the present invention is a biometric information detection method that uses a wearable biometric information detection device that detects the biometric information of a wearer as first biometric information and a stationary biometric information detection device that detects the biometric information of a subject as second biometric information, and includes the steps of: when data from the stationary biometric information detection device is received by the wearable biometric information detection device, calculating a correlation value between the first biometric information detected by the wearable biometric information detection device and the second biometric information included in the data; and when the calculated correlation value satisfies a predetermined correlation condition, causing the wearable biometric information detection device to start monitoring the second biometric information included in the data as the biometric information of the wearer. [Brief description of the drawings]

[0008] [Figure 1] 1 is a block diagram illustrating a schematic configuration of a biological information detection system according to an embodiment of the present invention. [Diagram 2] 10 is a flowchart showing the operation of a wearable device in a cooperation start phase of the biological information detection system in this embodiment. [Diagram 3] 11 is a diagram showing an example of the format of an advertising packet transmitted from a vital sign monitor in this embodiment. FIG. [Figure 4] FIG. 11 is an explanatory diagram regarding the operation of the wearable device in the collaboration start phase. [Diagram 5] FIG. 1 is an explanatory diagram regarding RRI, which is one type of biometric information. [Figure 6] 11 is a sequence chart showing the operation of a wearable device and a vital sign monitor in a collaboration start phase of the biological information detection system in this embodiment. [Figure 7] 10 is a flowchart showing the operation of a wearable device in a linkage cancellation phase of the biological information detection system in this embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, the dimensions of the components may be shown on different scales in order to make the components easier to see.

[0010] Fig. 1 is a block diagram showing a schematic configuration of a biological information detection system 1 according to an embodiment of the present invention. As shown in Fig. 1, the biological information detection system 1 according to this embodiment includes wearable biological information detection devices 10A and 10B, a stationary biological information detection device 20, and a first control unit 15 that functions as a control unit. The biological information detection system 1 according to this embodiment illustrates an example in which the control unit of the present invention is provided in the wearable biological information detection device.

[0011] The wearable biological information detection devices 10A and 10B are wearable devices such as an activity meter and a smart watch that are worn on the wrist of a subject. The wearable biological information detection devices 10A and 10B are each equipped with a vital sensor such as a photoelectric pulse wave sensor, and detect biological information such as the subject's heart rate and RRI (RR Interval). In this embodiment, the subject wearing the wearable biological information detection device 10A is referred to as wearer A, and the subject wearing the wearable biological information detection device 10B is referred to as wearer B. In the following description, the wearable biological information detection devices 10A and 10B may be referred to as wearable devices.

[0012] The stationary vital information detection device 20 is a stationary vital monitor installed in a predetermined space such as a room or a car. The stationary vital information detection device 20 is equipped with a vital sensor such as a millimeter wave radar, and detects vital information such as the heart rate and RRI of a subject present in the same space. The stationary vital information detection device 20 can detect the vital information of multiple subjects. For example, when a wearer A of a wearable device 10A and a wearer B of a wearable device 10B are present in the space in which the stationary vital information detection device 20 is installed, the stationary vital information detection device 20 can detect the vital information of the wearer A and the vital information of the wearer B.

[0013] However, the stationary biological information detection device 20 cannot distinguish that one of the two detected pieces of biological information is the biological information of "wearer A" and the other is the biological information of "wearer B." It should be noted that the stationary biological information detection device 20 can only acquire one of the two detected pieces of biological information as the biological information of "the first subject of two subjects present in the same space" and acquire the other biological information as the biological information of "the second subject of two subjects present in the same space."

[0014] Although details will be described later, the stationary vital information detection device 20 in this embodiment functions as a BLE (Bluetooth Low Energy) beacon. In the following description, the stationary vital information detection device 20 may be referred to as a vital monitor. For convenience of explanation, the following description will begin with a configuration of the vital monitor 20. As shown in FIG. 1, the vital monitor 20 includes a second vital sensor 21 (second detection means), a second wireless communication unit 22 (second communication means), a second storage unit 23, and a second control unit 24.

[0015] The second vital sensor 21 is a vital sensor that detects second vital information, which is the vital information of a subject present in the space in which the vital monitor 20 is installed. The second vital sensor 21 is, for example, a millimeter wave radar, and detects the subject's vital information such as the heart rate and RRI as the second vital information. The second vital sensor 21 is capable of detecting the vital information of a plurality of subjects. The second vital sensor 21 outputs the detected second vital information to the second control unit 24. In the following description, the second vital information may be referred to as second vital data.

[0016] The second wireless communication unit 22 is a BLE transceiver that wirelessly communicates with other devices according to the BLE standard, which is one of the short-range wireless communication standards. For example, when the wearable devices 10A and 10B are present in a space in which the vital monitor 20 is installed, the second wireless communication unit 22 wirelessly communicates with the wearable devices 10A and 10B according to the BLE standard. The second wireless communication unit 22 transmits advertising packets as data including the second vital data at predetermined time intervals (e.g., one-second intervals) under the control of the second control unit 24. That is, the vital monitor 20 functions as a BLE beacon. The advertising packets correspond to beacon packets in the present invention. The beacon packets are packets that can be received by an unspecified number of devices that operate according to the same communication standard as the vital monitor 20.

[0017] The second storage unit 23 includes a non-volatile memory that stores programs and various setting values ​​required for the second control unit 24 to execute various processes, and a volatile memory that is used as a temporary storage destination for data when the second control unit 24 executes various processes. The non-volatile memory is, for example, an EEPROM (Electrically Erasable Programmable Read-Only Memory) or a flash memory. The volatile memory is, for example, a RAM (Random Access Memory). The second storage unit 23 stores the second vital data as necessary under the control of the second control unit 24.

[0018] The second control unit 24 is, for example, a microprocessor such as a CPU (Central Processing Unit) or an MCU (Micro controller Unit). The second control unit 24 controls the overall operation of the vital monitor 20 according to a program stored in the second storage unit 23. For example, the second control unit 24 activates the second vital sensor 21 to cause the second vital sensor 21 to start detecting the second vital data. In addition, the second control unit 24 controls the second wireless communication unit 22 to transmit an advertising packet including the second vital data detected by the second vital sensor 21 at one-second intervals.

[0019] Wearable device 10A includes a first vital sensor 11 (first detection means), a first wireless communication unit 12 (first communication means), a first storage unit 13 (first storage means), a first operation display unit 14 (first notification means), and a first control unit 15 (control unit). Wearable device 10B has the same configuration as wearable device 10A, and therefore the configuration of wearable device 10B will not be described.

[0020] The first vital sensor 11 is a vital sensor that detects first biological information, which is biological information of a wearer A who wears the wearable device 10A. The first vital sensor 21 is, for example, a photoplethysmographic sensor, and detects biological information such as the heart rate and RRI of the wearer A as the first biological information. The first vital sensor 11 outputs the detected first biological information to the first control unit 15. In the following description, the first biological information may be referred to as first vital data.

[0021] The first wireless communication unit 12 is a BLE transceiver that wirelessly communicates with other devices according to the BLE standard. For example, when the wearable device 10A exists in a space in which the vital monitor 20 is installed, the first wireless communication unit 12 wirelessly communicates with the vital monitor 20 according to the BLE standard. Under the control of the first control unit 15, the first wireless communication unit 12 performs scanning to receive advertising packets transmitted from the vital monitor 20 at one-second intervals.

[0022] The first storage unit 13 includes a non-volatile memory that stores programs and various setting values ​​required for the first control unit 15 to execute various processes, and a volatile memory that is used as a temporary storage destination for data when the first control unit 15 executes various processes. The non-volatile memory is, for example, an EEPROM or a flash memory. The volatile memory is, for example, a RAM.

[0023] The first operation display unit 14 is a touch panel type display device. The wearer A can input instructions to the wearable device 10A by operating the first operation display unit 14. The first operation display unit 14 outputs an electrical signal generated in response to the operation of the touch panel by the wearer A as an operation signal to the first control unit 15. In addition, the first operation display unit 14 displays a predetermined image on the touch panel based on an image signal input from the first control unit 15.

[0024] The first control unit 15 is, for example, a microprocessor such as a CPU or an MCU. The first control unit 15 controls the overall operation of the wearable device 10A according to a program stored in the first storage unit 13. For example, when an operation signal instructing the start of sensing is input from the first operation display unit 14, the first control unit 15 starts the first vital sensor 11 to cause the first vital sensor 11 to start detecting the first vital data. In addition, the first control unit 15 controls the first wireless communication unit 12 to scan the advertising packet.

[0025] Although details will be described later, when the first wireless communication unit 12 receives an advertising packet from the vital monitor 20, the first control unit 15 calculates a correlation value between the first vital data detected by the first vital sensor 11 and the second vital data included in the advertising packet, and when the calculated correlation value satisfies a predetermined correlation condition, causes the wearable device 10A to start monitoring the second vital data included in the advertising packet as biological information of the wearer A. In particular, when the advertising packet includes second vital data of multiple subjects, the first control unit 15 calculates a correlation value between the first vital data and the second vital data for each of the multiple subjects, and causes the wearable device 10A to start monitoring the second vital data for which a correlation value that satisfies the correlation condition is obtained from among the calculated correlation values.

[0026] In the present embodiment, as described above, a state in which wearable device 10A monitors the second vital data included in the advertising packet as the biological information of wearer A may be expressed as a state in which cooperation between wearable device 10A and vital monitor 20 is established. In other words, the state in which cooperation between wearable device 10A and vital monitor 20 is established is a state in which, among the second vital data of multiple subjects detected by vital monitor 20, the second vital data of one subject is associated with wearer A as the biological information of wearer A of wearer A of wearable device 10A.

[0027] 2 is a flowchart showing the operation of the wearable device 10A in the cooperation start phase of the biological information detection system 1. The cooperation start phase is a phase including a process from when the wearable device 10A receives an advertising packet to when the wearable device 10A starts monitoring the second vital data included in the advertising packet as the biological information of the wearer A. In other words, the cooperation start phase is a phase including a process from when the wearable device 10A receives an advertising packet to when the wearable device 10A transitions to a state in which cooperation between the wearable device 10A and the vital monitor 20 is established.

[0028] 2, in the cooperation start phase, the first control unit 15 of the wearable device 10A determines whether or not an advertising packet has been received (detected) from the vital monitor 20 by the scanning operation of the first wireless communication unit 12 (step S1). If the answer is "No" in step S1, that is, if an advertising packet from the vital monitor 20 is not received by the scanning operation of the first wireless communication unit 12, it is presumed that the wearable device 10A is not present in the space in which the vital monitor 20 is installed. Therefore, in this case, the first control unit 15 repeats the process of step S1 at a predetermined time interval. The time interval at which the process of step S1 is repeated is preferably the same as the time interval at which the advertising packet is transmitted by the vital monitor 20.

[0029] While repeating the process of step S1, the first control unit 15 acquires the first vital data detected by the first vital sensor 11 as biological information of the wearer A, stores the acquired first vital data in the first storage unit 13, and generates an image signal indicating the pulse waveform, heart rate, RRI, etc. of the wearer A based on the time-series data of the first vital data stored in the first storage unit 13, and outputs the image signal to the first operation display unit 14. As a result, during a period in which an advertising packet is not received from the vital monitor 20 by the scanning operation of the first wireless communication unit 12, an image indicating the pulse waveform, heart rate, RRI, etc. of the wearer A based on the first vital data is displayed on the touch panel of the first operation display unit 14.

[0030] If the answer is "Yes" in step S1, that is, if an advertising packet is received from vital monitor 20 by the scanning operation of first wireless communication unit 12, it is estimated that wearable device 10A has entered the space in which vital monitor 20 is installed. In this case, first control unit 15 continues to store first vital data detected by first vital sensor 11 as biometric information of wearer A in first storage unit 13, while receiving advertising packets transmitted at one-second intervals from vital monitor 20 for a fixed time (step S2). First control unit 15 extracts second vital data from the multiple advertising packets received within the fixed time, and stores the extracted multiple pieces of second vital data in first storage unit 13.

[0031] FIG. 3 is a diagram showing an example of the format of an advertising packet transmitted from the vital sign monitor 20. As shown in FIG. 3, the advertising packet is composed of a plurality of blocks. In the example of FIG. 3, the advertising packet is composed of three blocks. Of the three blocks constituting the advertising packet, block 1 stores data indicating that this packet is an advertising packet defined by the BLE standard. In FIG. 3, "Name" indicates the name of the stored data. "Offset" indicates the position where the data indicated by "Name" is stored as the position (bytes) from the beginning of the advertising packet. "Value" indicates the numerical value of the data stored at the position indicated by "Offset". "Detail" is an explanation of each numerical value, and is not included in the advertising packet that is actually transmitted.

[0032] In the cooperation start phase, when both wearable devices 10A and 10B enter the space in which the vital monitor 20 is installed, the second vital sensor 21 of the vital monitor 20 detects the second vital data as the biological information of the "first subject of the two subjects existing in the same space" and the second vital data as the biological information of the "second subject of the two subjects existing in the same space". As shown in FIG. 3, for example, the second control unit 24 of the vital monitor 20 stores the second vital data of the first subject in block 2 and stores the second vital data of the second subject in block 3 among the three blocks constituting the advertisement packet. Hereinafter, the first subject may be referred to as the first subject, and the second subject may be referred to as the second subject.

[0033] As an example, in block 2, "0x43" is stored in the "Heart Rate" position as a numerical value indicating the heart rate of the first subject. "0x43" indicates that the heart rate is 67 bpm. As an example, in block 2, "0x036C" is stored in the "RRI1" position as a numerical value indicating the RRI of the first subject, and "0x039F" is stored in the "RRI2" position as a numerical value indicating the RRI of the first subject. "0x036C" indicates that the RRI is 876 msec, and "0x039F" indicates that the RRI is 927 msec.

[0034] As an example, in block 3, "0x46" is stored in the "Heart Rate" position as a numerical value indicating the heart rate of the second subject. "0x46" indicates that the heart rate is 70 bpm. As an example, in block 3, "0x0357" is stored in the "RRI1" position as a numerical value indicating the RRI of the second subject, and "0x0348" is stored in the "RRI2" position as a numerical value indicating the RRI of the second subject. "0x0357" indicates that the RRI is 855 msec, and "0x0348" indicates that the RRI is 840 msec.

[0035] In this embodiment, for example, advertising packets are transmitted from the vital monitor 20 at one-second intervals. Therefore, when the heart rate is higher than 60 bpm, multiple RRIs may be obtained per second for each subject, as shown in Fig. 3. On the other hand, when the heart rate is lower than 60 bpm, no RRI may be obtained per second for each subject.

[0036] As described above, in the collaboration start phase, when wearable devices 10A and 10B enter the space in which vital monitor 20 is installed, advertising packets in which the second vital data of the first subject is stored in block 2 and the second vital data of the second subject is stored in block 3 are transmitted from vital monitor 20 at 1 second intervals.

[0037] In step S2, the first control unit 15 of the wearable device 10A continues to store the first vital data detected by the first vital sensor 11 in the first memory unit 13 as biometric information of the wearer A, while extracting the second vital data of the first subject and the second vital data of the second subject from multiple advertising packets received within a certain period of time, and stores the extracted second vital data in the first memory unit 13.

[0038] As a result, as shown in FIG. 4, the first storage unit 13 stores time series data of the first vital data of the wearer A detected within a certain time, time series data of the second vital data of the first subject detected within a certain time (the second vital data stored in block 2), and time series data of the second vital data of the second subject detected within a certain time (the second vital data stored in block 3). Note that FIG. 4 shows only the RRI as each vital data. FIG. 5 is a diagram showing a part of the RRI time series data of the wearer A by a pulsation waveform W. As shown in FIG. 5, the time between a pair of adjacent peaks among the multiple peaks appearing in the pulsation waveform W is the RRI.

[0039] 2, the first control unit 15 of the wearable device 10A calculates a correlation value between the first vital data detected by the first vital sensor 11 and the second vital data included in the advertising packet based on the time series data of each vital data stored in the first storage unit 13 (step S3). In the case where the advertising packet includes the second vital data of multiple subjects as in this embodiment, the first control unit 15 calculates a correlation value between the first vital data and the second vital data for each of the multiple subjects.

[0040] Specifically, the first control unit 15 calculates a correlation value between the first vital data of the wearer A and the second vital data of the first subject, based on the time series data of the first vital data of the wearer A and the time series data of the second vital data of the first subject stored in the first storage unit 13. In addition, the first control unit 15 calculates a correlation value between the first vital data of the wearer A and the second vital data of the second subject, based on the time series data of the first vital data of the wearer A and the time series data of the second vital data of the second subject stored in the first storage unit 13.

[0041] The correlation value includes at least one of a correlation coefficient and an average of absolute difference values. As shown in FIG. 4, in this embodiment, as an example, both the correlation coefficient and the average of absolute difference values ​​are calculated as the correlation value. Since the calculation method of the correlation coefficient and the average of absolute difference values ​​is publicly known, the description thereof will be omitted in this specification. In the example shown in FIG. 4, the correlation coefficient between the first vital data of the wearer A and the second vital data of the first subject is calculated as about 0.983, and the average of absolute difference values ​​between the first vital data of the wearer A and the second vital data of the first subject is calculated as about 4.142. In addition, in the example shown in FIG. 4, the correlation coefficient between the first vital data of the wearer A and the second vital data of the second subject is calculated as about -0.083, and the average of absolute difference values ​​between the first vital data of the wearer A and the second vital data of the second subject is calculated as about 52.857.

[0042] Returning to FIG. 2, the first control unit 15 of the wearable device 10A determines whether or not the correlation value calculated in step S3 satisfies a predetermined correlation condition (step S4). If the answer is "No" in step S4, that is, if the correlation value calculated in step S3 does not satisfy the predetermined correlation condition, the first control unit 15 ends the operation shown in FIG. 2. In this case, the first control unit 15 continues to generate image signals indicating the pulse waveform, heart rate, RRI, etc. of the wearer A based on the time-series data of the first vital data acquired from the first vital sensor 11, and outputs the image signals to the first operation display unit 14. As a result, even after the operation shown in FIG. 2 is ended, an image indicating the pulse waveform, heart rate, RRI, etc. of the wearer A based on the first vital data is displayed on the touch panel of the first operation display unit 14.

[0043] On the other hand, if the answer is "Yes" in step S4, that is, if the correlation value calculated in step S3 satisfies the predetermined correlation condition, the first control unit 15 causes the wearable device 10A to start monitoring the second vital data included in the advertising packet as the biological information of the wearer A (step S5). In the case where the advertising packet includes the second vital data of multiple subjects as in this embodiment, the first control unit 15 causes the wearable device 10A to start monitoring the second vital data for which a correlation value that satisfies the correlation condition has been obtained from among the correlation values ​​calculated in step S3.

[0044] The predetermined correlation condition includes at least one of a first correlation condition that the correlation coefficient calculated for each of the subjects is greater than a first threshold, a second correlation condition that the average absolute difference value calculated for each of the subjects is smaller than a second threshold, a third correlation condition that the correlation coefficient calculated for each of the subjects is the largest correlation coefficient, and a fourth correlation condition that the average absolute difference value calculated for each of the subjects is the smallest. As an example, the first threshold is 0.90 and the second threshold is 20.

[0045] In the example shown in FIG. 4, the correlation values ​​(correlation coefficient and average absolute difference value) between the first vital data of the wearer A and the second vital data of the first subject satisfy all correlation conditions from the first correlation condition to the fourth correlation condition. In this case, in step S5, the first control unit 15 causes the wearable device 10A to start monitoring the second vital data of the first subject for which a correlation value satisfying all correlation conditions has been obtained. Specifically, the first control unit 15 determines block 2, which stores the second vital data of the first subject, as a monitoring target block among the three blocks constituting the advertising packet, and then acquires the second vital data stored in block 2, which is the monitoring target block of the advertising packet, as the biological information of the wearer A every time the first control unit 15 receives an advertising packet from the vital monitor 20 at one-second intervals by the scanning operation of the first wireless communication unit 12.

[0046] The above-described processes from step S1 to step S5 establish a link between wearable device 10A and vital monitor 20. That is, among the second vital data of the two subjects detected by vital monitor 20, the second vital data of the first subject is associated with wearer A of wearable device 10A as biological information of wearer A.

[0047] The first control unit 15 stores the second vital data acquired from block 2, which is the monitoring target block of the advertising packet as described above, in the first storage unit 13 as biometric information of the wearer A, and stops the operation of the first vital sensor 11 (step S6). As a result, the first storage unit 13 stores the second vital data included in the advertising packet received by the first wireless communication unit 12 after monitoring is started. In addition, the first vital sensor 11 stops detecting the first vital data of the wearer A after monitoring is started.

[0048] Then, first control unit 15 outputs a predetermined image signal to first operation display unit 14 to display an image indicating that wearable device 10A can be removed on the touch panel of first operation display unit 14 (step S7). As a result, first operation display unit 14 notifies wearer A that wearable device 10A can be removed after monitoring has started.

[0049] The above is a description of the operation of wearable device 10A in the collaboration start phase, but the operation of wearable device 10B in the collaboration start phase is the same as the operation shown in Fig. 2. For example, when a correlation value between the first vital data of wearer B detected by first vital sensor 11 and the second vital data of the second subject included in the advertising packet received from vital monitor 20 satisfies a correlation condition, first control unit 15 of wearable device 10B causes wearable device 10B to start monitoring the second vital data of the second subject included in the advertising packet.

[0050] Specifically, in this case, the first control unit 15 of the wearable device 10B determines, as a monitoring target block, block 3 in which the second vital data of the second subject is stored, among the three blocks constituting the advertising packet, and then acquires the second vital data stored in block 3, which is the monitoring target block of the advertising packet, as the biological information of the wearer B, every time the first control unit 15 receives an advertising packet from the vital monitor 20 at one-second intervals. This establishes a link between the wearable device 10B and the vital monitor 20. That is, of the second vital data of the two subjects detected by the vital monitor 20, the second vital data of the second subject is associated with the wearer B as the biological information of the wearer B of the wearable device 10B.

[0051] Fig. 6 is a sequence chart showing the operations of the wearable devices 10A and 10B in the cooperation start phase and the operation of the vital monitor 20. As shown in Fig. 6, in step S100, each of the wearable devices 10A and 10B receives an advertising packet P1 transmitted from the vital monitor 20 by a scanning operation of the first wireless communication unit 12 of the wearable device 10A and 10B.

[0052] When wearable device 10A receives the first advertising packet P1, it continues to store the first vital data detected by its own first vital sensor 11 in its own first storage unit 13 as the biological information of wearer A, while receiving advertising packets transmitted at one-second intervals from vital monitor 20 for a fixed time. Every time wearable device 10A receives an advertising packet at one-second intervals, it extracts the second vital data of the first subject (the second vital data stored in block 2) and the second vital data of the second subject (the second vital data stored in block 3) from the received advertising packet, and stores the extracted second vital data in its own first storage unit 13.

[0053] Similarly, when wearable device 10B receives the first advertising packet P1, it continues to store the first vital data detected by its own first vital sensor 11 in its own first storage unit 13 as the biological information of wearer B, while receiving advertising packets transmitted from vital monitor 20 at one-second intervals for a fixed time. Every time wearable device 10B receives an advertising packet at one-second intervals, it extracts the second vital data of the first subject (the second vital data stored in block 2) and the second vital data of the second subject (the second vital data stored in block 3) from the received advertising packet, and stores the extracted second vital data in its own first storage unit 13.

[0054] In step S101, when a certain time has elapsed since each of wearable devices 10A and 10B receives advertising packet P10 transmitted from vital monitor 20, each of wearable devices 10A and 10B calculates a correlation value between the first vital data and the second vital data for each of multiple subjects based on the time series data of each vital data stored in the first memory unit 13 of the wearable device.

[0055] In step S102, when wearable device 10A determines that the correlation value between the first vital data of wearer A and the second vital data of the first subject (the second vital data stored in block 2) satisfies the correlation condition, it starts monitoring the second vital data included in block 2 of the advertising packet as the biological information of wearer A. This establishes a link between wearable device 10A and vital monitor 20. That is, of the second vital data of the two subjects detected by vital monitor 20, the second vital data of the first subject is associated with wearer A as the biological information of wearer A of wearer A of wearable device 10A.

[0056] In step S103, when wearable device 10B determines that the correlation value between the first vital data of wearer B and the second vital data of the second subject (the second vital data stored in block 3) satisfies the correlation condition, wearable device 10B starts monitoring the second vital data included in block 3 of the advertising packet as biometric information of wearer B. This establishes a link between wearable device 10B and vital monitor 20. That is, of the second vital data of the two subjects detected by vital monitor 20, the second vital data of the second subject is associated with wearer B as biometric information of wearer B of wearer device 10B.

[0057] After the cooperation between wearable device 10A and vital monitor 20 is established, if wearable device 10A receives advertising packet P11 from vital monitor 20 by the scanning operation of its own first wireless communication unit 12 in step S104, wearable device 10A acquires second vital data included in block 2 of advertising packet P11 as biometric information of wearer A, and stores the acquired second vital data in its own first storage unit 13. Thereafter, wearable device 10A performs the same operation as step S105 every time it receives an advertising packet from vital monitor 20 at one-second intervals.

[0058] After the cooperation between wearable device 10B and vital sign monitor 20 is established, if wearable device 10B receives advertising packet P11 from vital sign monitor 20 by the scanning operation of its own first wireless communication unit 12 in step S104, wearable device 10B acquires second vital sign data included in block 3 of advertising packet P11 as biological information of wearer B, and stores the acquired second vital sign data in its own first storage unit 13. Thereafter, wearable device 10B performs the same operation as step S106 every time it receives an advertising packet from vital sign monitor 20 at one-second intervals.

[0059] Fig. 7 is a flowchart showing the operation of the wearable device 10A in the linkage cancellation phase of the biological information detection system 1. As shown in Fig. 7, after monitoring is started, that is, after linkage between the wearable device 10A and the vital monitor 20 is established, the first control unit 15 of the wearable device 10A determines whether or not an advertising packet has been received (detected) from the vital monitor 20 by the scanning operation of the first wireless communication unit 12 (step S11).

[0060] If the answer is "Yes" in step S11, that is, if an advertising packet from vital monitor 20 is received by the scanning operation of first wireless communication unit 12, it is presumed that wearable device 10A is present in the space in which vital monitor 20 is installed. In this case, first control unit 15 continues to receive advertising packets at one-second intervals by the scanning operation of first wireless communication unit 12, and acquires, as biometric information of wearer A, the second vital data stored in block 2, which is the monitoring target block of the advertising packet.

[0061] On the other hand, if step S11 is "No", that is, if the scanning operation of first wireless communication unit 12 does not receive an advertising packet from vital monitor 20, it is presumed that wearable device 10A has moved outside the space in which vital monitor 20 is installed. In this case, first control unit 15 outputs a predetermined image signal to first operation display unit 14 to display an image indicating that communication with vital monitor 20 has been disconnected on the touch panel of first operation display unit 14 (step S12), and further activates first vital sensor 11 (step S13).

[0062] If an advertising packet is not received by first wireless communication unit 11 of wearable device 10A after cooperation between wearable device 10A and vital monitor 20 is established by the operation of wearable device 10A in the cooperation cancellation phase as described above, first operation display unit 14 of wearable device 10A notifies that communication with vital monitor 20 has been disconnected, and first vital sensor 11 of wearable device 10A resumes detection of first vital data as biological information of wearer A. As a result, cooperation between wearable device 10A and vital monitor 20 is cancelled.

[0063] The operation of wearable device 10B in the linkage cancellation phase is the same as the operation shown in Fig. 7. If an advertising packet is not received from vital monitor 20 by the scanning operation of first wireless communication unit 12 after linkage between wearable device 10B and vital monitor 20 is established, first control unit 15 of wearable device 10B outputs a predetermined image signal to first operation display unit 14 to display an image indicating that communication with vital monitor 20 has been disconnected on the touch panel of first operation display unit 14, and further activates first vital sensor 11.

[0064] If an advertising packet is not received by first wireless communication unit 11 of wearable device 10B after cooperation between wearable device 10B and vital monitor 20 is established by such operation of wearable device 10B in the cooperation cancellation phase, first operation display unit 14 of wearable device 10B notifies that communication with vital monitor 20 has been disconnected, and first vital sensor 11 of wearable device 10B resumes detection of first vital data as biological information of wearer B. As a result, cooperation between wearable device 10B and vital monitor 20 is cancelled.

[0065] As described above, in this embodiment, when the wearable device 10A receives an advertising packet from the vital monitor 20, the wearable device 10A calculates a correlation value between the first vital data of the wearer A detected by the wearable device 10A and the second vital data included in the advertising packet, and when the calculated correlation value satisfies a predetermined correlation condition, the wearable device 10A starts monitoring the second vital data included in the advertising packet as biological information of the wearer A. In particular, when the advertising packet includes second vital data of multiple subjects as in this embodiment, the wearable device 10A calculates a correlation value between the first vital data and the second vital data for each of the multiple subjects, and starts monitoring the second vital data for which a correlation value that satisfies the correlation condition is obtained among the calculated correlation values.

[0066] As a result, among the second vital data of multiple subjects detected by vital monitor 20, the second vital data of one subject is automatically associated with wearer A of wearable device 10A as the biological information of wearer A, without the cumbersome task of registering identification information (user ID, etc.) of all subjects who use the system in advance in the system as in the conventional technology. As a result, wearer A of wearable device 10A can receive services (such as provision of vital data of wearer A) from vital monitor 20, and even if wearer A removes wearable device 10A, wearable device 10A can continuously collect and record the second vital data detected by vital monitor 20 as the biological information of wearer A. The same effect can be obtained for wearable device 10B.

[0067] Furthermore, in this embodiment, after monitoring has begun, i.e., after cooperation between wearable device 10A and vital monitor 20 has been established, first memory unit 13 of wearable device 10A stores the second vital data contained in the advertising packet received by first wireless communication unit 12 of wearable device 10A, first vital sensor 11 of wearable device 10A stops detecting the first vital data of wearer A, and further, first operation display unit 14 of wearable device 10A notifies wearer A that wearable device 10A can be removed. As a result, even if the wearer A removes the wearable device 10A, it is possible to continuously collect and record the second vital data detected by the vital monitor 20 as biological information of the wearer A while suppressing the power consumption of the wearable device 10A. The same effect can be obtained for the wearable device 10B.

[0068] Furthermore, in this embodiment, if an advertising packet is not received by the first wireless communication unit 11 of the wearable device 10A after monitoring has started, i.e., after cooperation between the wearable device 10A and the vital monitor 20 has been established, the first operation display unit 14 of the wearable device 10A notifies the user that communication with the vital monitor 20 has been disconnected, and the first vital sensor 11 of the wearable device 10A resumes detection of the first vital data as biometric information of the wearer A. As a result, even if the communication between wearable device 10A and vital monitor 20 is cut off and the service from vital monitor 20 cannot be received, the first vital data detected by first vital sensor 11 can be continuously collected and recorded as biological information of wearer A. The same effect can be obtained for wearable device 10B.

[0069] The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0070] For example, in the above embodiment, the control unit (first control unit 15) of the present invention is provided in the wearable biometric information detection device, but the control unit of the present invention does not necessarily have to be provided in the wearable biometric information detection device. For example, the control unit of the present invention may be provided in a higher-level device of a system such as a server device. Alternatively, the control unit of the present invention may be provided in an information processing device such as a smartphone that cooperates with the wearable biometric information detection device. Also, in the above embodiment, the BLE standard is exemplified as the communication standard used for communication between the wearable biometric information detection device and the stationary biometric information detection device, but the communication standard is not limited to the BLE standard as long as the present invention can be realized.

[0071] In the above embodiment, wearable devices such as activity meters and smart watches that are worn on the subject's wrist, for example, are given as examples of the wearable bioinformation detection device of the present invention. However, the wearable bioinformation detection device of the present invention includes not only devices that are worn on the outside of the subject's body, but also devices that are implanted inside the subject's body.

[0072] In the above embodiment, an advertisement packet, which is a type of beacon packet that can be received by an unspecified number of devices operating according to the same communication standard, is exemplified as the data including the second biometric information transmitted from the stationary biometric information detection device, but the data transmitted from the stationary biometric information detection device is not limited to a beacon packet such as an advertisement packet. If the data is embedded with multiple pieces of biometric information, the present invention may be implemented using a communication method other than a beacon using the BLE standard. For example, when the stationary biometric information detection device embeds multiple pieces of biometric information in an advertisement packet and transmits it, the advertisement packet may be issued by broadcast communication, or the advertisement packet may be issued by connection communication.

[0073] In the above embodiment, the first operation display unit 14, which is a touch panel type display device, is exemplified as the first notification means for notifying that the wearable biological information detection device can be removed and that communication with the stationary biological information detection device has been cut off, but the first notification means of the present invention is not limited to a touch panel type display device. For example, a speaker may be used as the first notification means, and the above information may be notified by audio output from the speaker. Alternatively, a vibrator may be used as the first notification means, and the above information may be notified by vibration caused by the vibrator. Alternatively, the above information may be notified by combining at least two of the display device, the speaker, and the vibrator.

[0074] In the above embodiment, at least one of the correlation coefficient and the difference absolute value average is calculated as the correlation value, but other values ​​may be calculated as the correlation value as long as they indicate the correlation between the first vital data and the second vital data. In addition, in the above embodiment, the predetermined correlation condition includes at least one of the following: a first correlation condition that the correlation coefficient is greater than a first threshold value among the correlation coefficients calculated for each of the multiple subjects; a second correlation condition that the difference absolute value average is smaller than a second threshold value among the difference absolute value averages calculated for each of the multiple subjects; a third correlation condition that the correlation coefficient is the largest among the correlation coefficients calculated for each of the multiple subjects; and a fourth correlation condition that the difference absolute value average is the smallest among the difference absolute value averages calculated for each of the multiple subjects. If the advertising packet includes only the second vital data of one subject, the predetermined correlation condition may include at least one of the first correlation condition that the correlation coefficient is greater than a first threshold value and the second correlation condition that the difference absolute value average is smaller than a second threshold value.

[0075] A biological information detection system according to an aspect of the present invention may have the following configuration. A biometric information detection system according to one embodiment of the present invention is a biometric information detection system comprising a wearable biometric information detection device, a stationary biometric information detection device, and a control unit, wherein the wearable biometric information detection device comprises a first detection means for detecting first biometric information, which is biometric information of a wearer, and a first communication means for communicating with the stationary biometric information detection device, and the stationary biometric information detection device comprises a second detection means for detecting second biometric information, which is biometric information of a subject, and a second communication means for transmitting data including the second biometric information, and when the data is received by the first communication means, the control unit calculates a correlation value between the first biometric information detected by the first detection means and the second biometric information included in the data, and when the calculated correlation value satisfies a predetermined correlation condition, causes the wearable biometric information detection device to start monitoring the second biometric information included in the data as biometric information of the wearer.

[0076] In one embodiment of the biometric information detection system of the present invention, the correlation value may include at least one of a correlation coefficient and an average absolute difference value, and the correlation condition may include at least one of a first correlation condition that the correlation coefficient is greater than a first threshold value and a second correlation condition that the average absolute difference value is smaller than a second threshold value.

[0077] In one embodiment of the biometric information detection system of the present invention, when the data includes second biometric information of multiple subjects, the control unit may calculate a correlation value between the first biometric information and the second biometric information for each of the multiple subjects, and cause the wearable biometric information detection device to start monitoring the second biometric information for which a correlation value that satisfies the correlation condition is obtained among the calculated correlation values.

[0078] In one embodiment of the bioinformation detection system of the present invention, the correlation value includes at least one of a correlation coefficient and an average absolute difference value, and the correlation condition may include at least one of a first correlation condition that the correlation coefficient calculated for each of the multiple subjects is greater than a first threshold value, a second correlation condition that the average absolute difference value calculated for each of the multiple subjects is smaller than a second threshold value, a third correlation condition that the correlation coefficient calculated for each of the multiple subjects is the largest correlation coefficient, and a fourth correlation condition that the average absolute difference value calculated for each of the multiple subjects is the smallest.

[0079] In one embodiment of the biometric information detection system of the present invention, the wearable biometric information detection device further includes a first storage means for storing the second biometric information contained in the data received by the first communication means after the monitoring has started, and a first notification means for notifying that the wearable biometric information detection device can be removed after the monitoring has started, and the first detection means may stop detecting the first biometric information after the monitoring has started.

[0080] In one embodiment of the biometric information detection system of the present invention, if the data is not received by the first communication means after the monitoring has started, the first notification means may notify that communication with the stationary biometric information detection device has been disconnected, and the first detection means may resume detection of the first biometric information.

[0081] In the biological information detection system according to the aspect of the present invention, the second communication unit may transmit a beacon packet including the second biological information as the data including the second biological information.

[0082] The wearable biological information detecting device according to one aspect of the present invention may have the following configuration. A wearable biometric information detection device of one embodiment of the present invention comprises a first detection means for detecting first biometric information which is biometric information of a wearer; a first communication means for communicating with a stationary biometric information detection device for detecting second biometric information which is biometric information of a subject; and a control unit for, when data from the stationary biometric information detection device is received by the first communication means, calculating a correlation value between the first biometric information detected by the first detection means and the second biometric information included in the data, and, when the calculated correlation value satisfies a predetermined correlation condition, causing the wearable biometric information detection device to start monitoring the second biometric information included in the data as biometric information of the wearer.

[0083] In one embodiment of the wearable biometric detection device of the present invention, the correlation value may include at least one of a correlation coefficient and an average absolute difference value, and the correlation condition may include at least one of a first correlation condition that the correlation coefficient is greater than a first threshold value and a second correlation condition that the average absolute difference value is smaller than a second threshold value.

[0084] In one embodiment of the wearable biometric information detection device of the present invention, when the data includes second biometric information of multiple subjects, the control unit may calculate a correlation value between the first biometric information and the second biometric information for each of the multiple subjects, and cause the wearable biometric information detection device to start monitoring the second biometric information for which a correlation value that satisfies the correlation condition is obtained among the calculated correlation values.

[0085] In one embodiment of the wearable biometric detection device of the present invention, the correlation value includes at least one of a correlation coefficient and an average absolute difference value, and the correlation condition may include at least one of a first correlation condition that the correlation coefficient calculated for each of the multiple subjects is greater than a first threshold value, a second correlation condition that the average absolute difference value calculated for each of the multiple subjects is smaller than a second threshold value, a third correlation condition that the correlation coefficient calculated for each of the multiple subjects is the largest correlation coefficient, and a fourth correlation condition that the average absolute difference value calculated for each of the multiple subjects is the smallest.

[0086] The wearable biometric information detection device of one embodiment of the present invention further includes a first storage means for storing the second biometric information contained in the data received by the first communication means after the monitoring has started, and a first notification means for notifying that the wearable biometric information detection device can be removed after the monitoring has started, and the first detection means may stop detecting the first biometric information after the monitoring has started.

[0087] In one embodiment of the wearable biometric information detection device of the present invention, if the data is not received by the first communication means after the monitoring has started, the first notification means may notify that communication with the stationary biometric information detection device has been disconnected, and the first detection means may resume detection of the first biometric information.

[0088] In the wearable biological information detection device according to one aspect of the present invention, the data received by the first communication means from the stationary biological information detection device may be a beacon packet including the second biological information.

[0089] A biological information detection method according to one aspect of the present invention may have the following configuration. A biometric information detection method of one embodiment of the present invention is a biometric information detection method that uses a wearable biometric information detection device that detects a wearer's biometric information as first biometric information and a stationary biometric information detection device that detects a subject's biometric information as second biometric information, and includes the steps of: when data from the stationary biometric information detection device is received by the wearable biometric information detection device, calculating a correlation value between the first biometric information detected by the wearable biometric information detection device and the second biometric information included in the data; and when the calculated correlation value satisfies a predetermined correlation condition, causing the wearable biometric information detection device to start monitoring the second biometric information included in the data as the wearer's biometric information. [Explanation of symbols]

[0090] 1...biometric information detection system, 10A, 10B...wearable device (wearable biological information detection device), 11...first vital sensor (first detection means), 12...first wireless communication unit (first communication means), 13...first memory unit (first memory means), 14...first operation display unit (first notification means), 15...first control unit (control unit), 20...vital monitor (stationary biological information detection device), 21...second vital sensor (second detection means), 22...second wireless communication unit (second communication means), 23...second memory unit, 24...second control unit

Claims

1. A wearable biological information detection device; A stationary biological information detection device; A control unit; A biological information detection system comprising: The wearable biological information detection device includes: A first detection means for detecting first biological information which is biological information of the wearer; A first communication means for communicating with the stationary biological information detection device; Equipped with The stationary biological information detection device includes: A second detection means for detecting second biological information which is biological information of the subject; A second communication means for transmitting data including the second biological information; Equipped with The control unit performs the first detection when the data is received by the first communication unit. the first biometric information detected by the output means and the second biometric information included in the data; and when the calculated correlation value satisfies a predetermined correlation condition, The wearable device monitors the second biological information included in the data as biological information of the person. Initiate the biological information detection device; Biometric detection system.

2. The correlation value includes at least one of a correlation coefficient and an average of absolute differences, The correlation condition is a first correlation condition that the correlation coefficient is greater than a first threshold value, and and a second correlation condition that the absolute average is less than a second threshold. The biological information detection system according to claim 1 .

3. When the data includes second biological information of a plurality of subjects, the control unit A correlation value between the first biological information and the second biological information is calculated for each subject. The second biological information monitoring method includes the steps of: The wearable biological information detection device is started. The biological information detection system according to claim 1 .

4. The correlation value includes at least one of a correlation coefficient and an average of absolute differences, The correlation condition is a condition in which the correlation coefficient calculated for each of the plurality of subjects is greater than or equal to a first threshold value. A first correlation condition is that the correlation coefficient is large, and the difference calculated for each of the plurality of subjects is A second correlation condition is that the average of the absolute difference values ​​is smaller than a second threshold value. The first correlation coefficient is the largest among the correlation coefficients calculated for each of the multiple subjects. The smallest of the three correlation conditions and the average absolute difference calculated for each of the multiple subjects and a fourth correlation condition that the correlation is an average of absolute differences. The biological information detection system according to claim 3 .

5. The wearable biological information detection device includes: The data received by the first communication means after the monitoring is started. a first storage means for storing the second biological information included in After the monitoring is started, the wearable biological information detection device can be removed. A first notification means for notifying that something is happening; Further equipped with The first detection means detects the first biological information after the monitoring is started. Stop, The biological information detection system according to claim 1 .

6. After the monitoring is started, the data is received by the first communication means. If not, The first notification means notifies that communication with the stationary biological information detection device has been disconnected. Know, the first detection means restarts detection of the first biological information; The biological information detection system according to claim 5 .

7. The second communication means communicates the second biometric information as the data including the second biometric information. The biometric information according to any one of claims 1 to 6, wherein the biometric information according to any one of claims 1 to 6 is transmitted as a beacon packet including the biometric information. Report detection system.

8. A first detection means for detecting first biological information which is biological information of the wearer; The second biological information detecting device communicates with a stationary biological information detecting device that detects second biological information, which is biological information of the subject. A first communication means for The data from the stationary biological information detection device is received by the first communication means. In this case, the first biological information detected by the first detection means and the data included therein a correlation value between the second biological information and the second biological information, and the calculated correlation value satisfies a predetermined correlation condition. At that time, the second biological information included in the data is monitored as biological information of the wearer. A control unit for initiating a ring; A wearable biological information detection device comprising:

9. The correlation value includes at least one of a correlation coefficient and an average of absolute differences, The correlation condition is a first correlation condition that the correlation coefficient is greater than a first threshold value, and and a second correlation condition that the absolute average is less than a second threshold. The wearable biological information detecting device according to claim 8 .

10. When the data includes the second biological information of a plurality of the subjects, the control unit Calculating a correlation value between the first biometric information and the second biometric information for each of the subjects; The correlation value satisfying the correlation condition is obtained from among the correlation values ​​obtained by monitoring the second biological information. causing the wearable biological information detection device to start The wearable biological information detecting device according to claim 8 .

11. The correlation value includes at least one of a correlation coefficient and an average of absolute differences, The correlation condition is a condition in which the correlation coefficients calculated for the plurality of subjects are greater than or equal to a first threshold value. The first correlation condition is that the correlation coefficient is large, and the difference calculated for each of the plurality of subjects is A second correlation condition is that the average of the absolute difference values ​​is smaller than a second threshold value. The first correlation coefficient is the largest among the correlation coefficients calculated for each of the subjects. The smallest of the three correlation conditions and the average absolute difference calculated for each of the subjects and a fourth correlation condition that the correlation is an average of absolute differences. The wearable biological information detection device according to claim 10.

12. The data received by the first communication means after the monitoring is started. a first storage means for storing the second biological information included in After the monitoring is started, the wearable biological information detection device can be removed. A first notification means for notifying that something is happening; Further equipped with The first detection means detects the first biological information after the monitoring is started. Stop, The wearable biological information detection device according to any one of claims 8 to 11.

13. After the monitoring is started, the data is received by the first communication means. If not, The first notification means notifies that communication with the stationary biological information detection device has been disconnected. Know, the first detection means restarts detection of the first biological information; The wearable biological information detecting device according to claim 12.

14. The data received from the stationary biological information detection device by the first communication means. is a beacon packet including the second biological information.

3. The wearable biological information detection device according to claim 1 .

15. A wearable biometric information detection device that detects biometric information of a wearer as first biometric information, and and a stationary biological information detection device for detecting biological information as second biological information. A detection method comprising: The wearable biological information detection device detects data from the stationary biological information detection device. When the first biological information is received, the first biological information detected by the wearable biological information detection device is calculating a correlation value with the second biological information included in the data; When the calculated correlation value satisfies a predetermined correlation condition, the biological information of the wearer is The second biological information included in the data is monitored by the wearable biological information detection device. Initiating the process; A biological information detection method comprising the steps of:

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