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

Abstract

The present invention provides a biological information detection system and method, and a wearable biological information detection device, without the need for a complicated operation of pre-registering the identification information of all object persons using the system into the system. The biological information detection system of the present invention includes a wearable biological information detection device, a fixed biological information detection device, and a control unit. When the control unit receives data from the fixed biological information detection device by the first communication unit, it calculates a correlation value between the first biological information detected by the first detection unit and the second biological information included in the data. When the calculated correlation value satisfies a specified correlation condition, the wearable biological information detection device is caused to start monitoring the second biological information included in the data as the biological information of the wearer of the wearable biological information detection device.

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 Art

[0002] The following technique is disclosed in Patent Document 1 below: A biological information measuring device that stores specific biological information associated with the identification information of an object person and another biological information measuring device that stores other biological information associated with the identification information communicate with each other to compare the identification information associated with the specific biological information and the identification information associated with the other biological information. When the two pieces of identification information match, the other biological information is acquired, and the acquired other biological information is associated with the matching identification information and stored.

[0003] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2014-036747

[0004] In the technique of Patent Document 1 above, in order to centrally manage a plurality of biological information of the same object person measured by a plurality of biological information measuring devices in association with the object person, a complicated operation such as pre-registering the identification information (user ID, etc.) of all object persons using the system into the system is required. Summary of the Invention

[0005] In order to solve the above problems, a biological information detection system according to one aspect of the present invention includes: a wearable biological information detection device; a fixed biological information detection device; and a control unit. The wearable biological information detection device includes: a first detection unit that detects first biological information that is biological information of a wearer; and a first communication unit that communicates with the fixed biological information detection device. The fixed biological information detection device includes: a second detection unit that detects second biological information that is biological information of an object person; and a second communication unit that transmits data including the second biological information. When the data is received by the first communication unit, the control unit calculates a correlation value between the first biological information detected by the first detection unit and the second biological information included in the data. When the calculated correlation value satisfies a specified correlation condition, the wearable biological information detection device is caused to start monitoring the second biological information included in the data as the biological information of the wearer.

[0006] One embodiment of the wearable biological information detection device of the present invention includes: a first detection unit that detects first biological information, which is the biological information of the wearer; a first communication unit that communicates with a fixed biological information detection device that detects second biological information, which is the biological information of the target person; and a control unit that, when data from the fixed biological information detection device is received by the first communication unit, calculates a correlation value between the first biological information detected by the first detection unit and the second biological information included in the data, and when the calculated correlation value satisfies a specified correlation condition, causes the wearable biological information detection device to start monitoring the second biological information included in the data as the biological information of the wearer.

[0007] One embodiment of the biological information detection method of the present invention uses a wearable biological information detection device that detects the biological information of the wearer as the first biological information and a fixed biological information detection device that detects the biological information of the target person as the second biological information. The biological information detection method includes the following steps: when the wearable biological information detection device receives data from the fixed biological information detection device, calculating a correlation value between the first biological information detected by the wearable biological information detection device and the second biological information included in the data; and when the calculated correlation value satisfies a specified correlation condition, causing the wearable biological information detection device to start monitoring the second biological information included in the data as the biological information of the wearer. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is a block diagram schematically showing the structure of the biological information detection system in the present embodiment.

[0009] Figure 2 is a flowchart showing the operation of the wearable device in the cooperation start stage of the biological information detection system in the present embodiment.

[0010] Figure 3 is a diagram showing an example of the format of an advertise packet sent from the vital sign monitor in the present embodiment.

[0011] Figure 4 is an explanatory diagram related to the operation of the wearable device in the cooperation start stage.

[0012] Figure 5 is an explanatory diagram related to RRI, which is one of the biological information.

[0013] Figure 6It is a sequence diagram showing the operations of the wearable device and the vital sign monitor in the cooperation start phase of the biological information detection system in this embodiment.

[0014] Figure 7 It is a flowchart showing the operation of the wearable device in the cooperation release phase of the biological information detection system in this embodiment.

[0015] Reference numeral description

[0016] 1: Biological information detection system; 10A, 10B: Wearable device (wearable biological information detection device); 11: First vital sign sensor (first detection unit); 12: First wireless communication unit (first communication unit); 13: First storage unit (first storage unit); 14: First operation display unit (first notification unit); 15: First control unit (control unit); 20: Vital sign monitor (fixed biological information detection device); 21: Second vital sign sensor (second detection unit); 22: Second wireless communication unit (second communication unit); 23: Second storage unit; 24: Second control unit. Detailed implementation mode

[0017] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0018] In addition, in the following respective drawings, in order to easily observe each structural element, sometimes the scale of the dimensions is represented differently according to the structural element.

[0019] Figure 1 It is a structural block diagram schematically showing the biological information detection system 1 in an embodiment of the present invention. As Figure 1 shown, the biological information detection system 1 in this embodiment includes wearable biological information detection devices 10A and 10B, a fixed biological information detection device 20, and a first control unit 15 that functions as a control unit. In the biological information detection system 1 of this embodiment, the control unit of the present invention is exemplified in the form of being provided in the wearable biological information detection device.

[0020] The wearable biological information detection devices 10A and 10B are, for example, activity meters worn on the wrist or the like of a subject, and wearable devices such as smart watches. The wearable biological information detection devices 10A and 10B are respectively equipped with a vital sign sensor such as a photoelectric pulse sensor, and detect biological information such as the heart rate and RRI (R-R Interval) of the subject. In the present 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 are sometimes referred to as wearable devices.

[0021] The fixed biological information detection device 20 is, for example, a fixed vital sign monitor installed in a specified space such as indoors or in a vehicle. The fixed biological information detection device 20 is, for example, equipped with a vital sign sensor such as a millimeter wave radar, and detects biological information such as the heart rate and RRI of the subjects present in the same space. The fixed biological information detection device 20 can detect the biological information of multiple subjects. For example, when wearer A of the wearable device 10A and wearer B of the wearable device 10B are present in the space where the fixed biological information detection device 20 is installed, the fixed biological information detection device 20 can detect the biological information of wearer A and the biological information of wearer B.

[0022] However, the fixed biological information detection device 20 cannot identify that one of the two pieces of biological information detected is the biological information of "wearer A" and the other piece of biological information is the biological information of "wearer B". It should be noted that the fixed biological information detection device 20 can only obtain one of the two pieces of biological information detected as the biological information of "the first subject among the two subjects present in the same space", and obtain the other piece of biological information as the biological information of "the second subject among the two subjects present in the same space".

[0023] As will be described in detail later, the fixed biological information detection device 20 in the present embodiment functions as a BLE (Bluetooth Low Energy) beacon. In the following description, the fixed biological information detection device 20 is sometimes referred to as a vital sign monitor. Hereinafter, for the sake of convenience of explanation, the structure of the vital sign monitor 20 will be described first. As Figure 1 shown, the vital sign monitor 20 includes a second vital sign sensor 21 (second detection unit), a second wireless communication unit 22 (second communication unit), a second storage unit 23, and a second control unit 24.

[0024] The second vital sign sensor 21 is a vital sign sensor that detects second biological information, which is biological information of an object present in the space where the vital sign monitor 20 is installed. The second vital sign sensor 21 is, for example, a millimeter-wave radar or the like, and detects biological information such as the heart rate and RRI of the object as the second biological information. The second vital sign sensor 21 can detect the biological information of multiple objects. The second vital sign sensor 21 outputs the detected second biological information to the second control unit 24. In the following description, the second biological information may sometimes be referred to as second vital sign data.

[0025] The second wireless communication unit 22 is a BLE transceiver that performs wireless communication 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 the space where the vital sign monitor 20 is installed, the second wireless communication unit 22 performs wireless communication with the wearable devices 10A and 10B according to the BLE standard. The second wireless communication unit 22, under the control of the second control unit 24, transmits an advertisement packet as data including the second vital sign data at a predetermined time interval (for example, at 1-second intervals). That is, the vital sign monitor 20 functions as a BLE beacon. The advertisement packet corresponds to the beacon packet in the present invention. The beacon packet is a packet that can be received by multiple unspecified devices operating according to the same communication standard as the vital sign monitor 20.

[0026] 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 perform various processes; and a volatile memory that serves as a temporary storage destination for data when the second control unit 24 performs various processes. The non-volatile memory is, for example, an EEPROM (Electrically Erasable Programmable Read-Only Memory) or a flash memory, etc. The volatile memory is, for example, a RAM (Random Access Memory), etc. The second storage unit 23 stores the second vital sign data as needed under the control of the second control unit 24.

[0027] The second control unit 24 is a microprocessor such as a CPU (Central Processing Unit) or an MCU (Microcontroller Unit), for example. The second control unit 24 controls the overall operation of the vital sign monitor 20 according to the program stored in the second storage unit 23. For example, the second control unit 24 starts the second vital sign sensor 21 to cause the second vital sign sensor 21 to start detecting the second vital sign data. In addition, the second control unit 24 controls the second wireless communication unit 22 so as to send an announcement packet including the second vital sign data detected by the second vital sign sensor 21 at one-second intervals.

[0028] The wearable device 10A includes a first vital sign sensor 11 (first detection unit), a first wireless communication unit 12 (first communication unit), a first storage unit 13 (first storage unit), a first operation display unit 14 (first notification unit), and a first control unit 15 (control unit). Since the wearable device 10B has the same structure as the wearable device 10A, the description of the structure of the wearable device 10B is omitted.

[0029] The first vital sign sensor 11 is a vital sign sensor that detects first biological information, which is the biological information of the wearer A wearing the wearable device 10A. The first vital sign sensor 11 is, for example, a photoplethysmogram sensor or the like, and detects biological information such as the heart rate and RRI of the wearer A as the first biological information. The first vital sign sensor 11 outputs the detected first biological information to the first control unit 15. In the following description, the first biological information is sometimes referred to as the first vital sign data.

[0030] The first wireless communication unit 12 is a BLE transceiver that performs wireless communication with other devices according to the BLE standard. For example, when the wearable device 10A is present in the space where the vital sign monitor 20 is provided, the first wireless communication unit 12 performs wireless communication with the vital sign monitor 20 according to the BLE standard. The first wireless communication unit 12 performs scanning under the control of the first control unit 15, thereby receiving the announcement packet sent from the vital sign monitor 20 at one-second intervals.

[0031] 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, etc. The volatile memory is, for example, a RAM or the like.

[0032] The first operation display unit 14 is a touch panel type display device. The wearer A can input an instruction for the wearable device 10A by operating the first operation display unit 14. The first operation display unit 14 outputs an electrical signal generated according to the operation of the touch panel by the wearer A to the first control unit 15 as an operation signal. In addition, the first operation display unit 14 displays a predetermined image on the touch panel according to the image signal input from the first control unit 15.

[0033] The first control unit 15 is a microprocessor such as a CPU or an MCU, for example. The first control unit 15 controls the overall operation of the wearable device 10A according to the program stored in the first storage unit 13. For example, when an operation signal instructing the start of sensing detection is input from the first operation display unit 14, the first control unit 15 activates the first vital sign sensor 11, thereby causing the first vital sign sensor 11 to start detecting the first vital sign data. In addition, the first control unit 15 controls the first wireless communication unit 12 to scan for advertisement packets.

[0034] As will be described in detail later, when the first control unit 15 receives an advertisement packet from the vital sign monitor 20 by the first wireless communication unit 12, the first control unit 15 calculates the correlation value between the first vital sign data detected by the first vital sign sensor 11 and the second vital sign data included in the advertisement packet. When the calculated correlation value satisfies a predetermined correlation condition, the wearable device 10A starts monitoring the second vital sign data included in the advertisement packet as the biological information of the wearer A. In particular, when the advertisement packet includes the second vital sign data of a plurality of subjects, the first control unit 15 calculates the correlation value between the first vital sign data and the second vital sign data for each of the plurality of subjects, and causes the wearable device 10A to start monitoring the second vital sign data for which the calculated correlation value satisfies the correlation condition.

[0035] In the present embodiment, as described above, there is a case where the state in which the wearable device 10A monitors the second vital sign data included in the advertisement packet as the biological information of the wearer A is expressed as a state in which cooperation between the wearable device 10A and the vital sign monitor 20 is established. That is, the state in which cooperation between the wearable device 10A and the vital sign monitor 20 is established means a state in which the second vital sign data of one of the plurality of subjects detected by the vital sign monitor 20 is associated with the wearer A as the biological information of the wearer A of the wearable device 10A.

[0036] Figure 2It 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 the process from receiving the advertisement packet from the wearable device 10A to starting to monitor the second vital sign data included in the advertisement packet as the biological information of the wearer A. In other words, the cooperation start phase is a phase including the process from receiving the advertisement packet from the wearable device 10A to transitioning to a state where cooperation between the wearable device 10A and the vital sign monitor 20 is established.

[0037] As Figure 2 shown, in the cooperation start phase, the first control unit 15 of the wearable device 10A determines whether an advertisement packet from the vital sign monitor 20 is received (detected) through the scanning operation of the first wireless communication unit 12 (step S1). When the result in this step S1 is "no", that is, when the advertisement packet from the vital sign monitor 20 is not received through the scanning operation of the first wireless communication unit 12, it is presumed that the wearable device 10A is not present in the space where the vital sign monitor 20 is installed. Therefore, in this case, the first control unit 15 repeats the process of step S1 at a prescribed time interval. Preferably, the time interval for repeating the process of step S1 is the same as the time interval at which the vital sign monitor 20 transmits the advertisement packet.

[0038] During the period when the first control unit 15 repeats the process of step S1, the first control unit 15 acquires the first vital sign data detected by the first vital sign sensor 11 as the biological information of the wearer A, stores the acquired first vital sign data in the first storage unit 13, and generates an image signal representing the pulsation waveform, heart rate, RRI, etc. of the wearer A based on the time series data of the first vital sign data stored in the first storage unit 13 and outputs the image signal to the first operation display unit 14. Thereby, during the period when the advertisement packet from the vital sign monitor 20 is not received through the scanning operation of the first wireless communication unit 12, an image representing the pulsation waveform, heart rate, RRI, etc. of the wearer A based on the first vital sign data is displayed on the touch panel of the first operation display unit 14.

[0039] In the case where the answer is "Yes" in the above step S1, that is, when the announcement packet from the vital sign monitor 20 is received through the scanning operation of the first wireless communication unit 12, it is presumed that the wearable device 10A has entered the space where the vital sign monitor 20 is set. In this case, the first control unit 15 continues to store the first vital sign data detected by the first vital sign sensor 11 as the biological information of the wearer A in the first storage unit 13, and at the same time receives the announcement packet sent from the vital sign monitor 20 at 1-second intervals for a certain period of time (step S2). The first control unit 15 extracts the second vital sign data from the multiple announcement packets received within a certain period of time, and stores the extracted multiple second vital sign data in the first storage unit 13.

[0040] Figure 3 FIG. is an example showing the format of the announcement packet sent from the vital sign monitor 20. As Figure 3 shown, the announcement packet is composed of multiple blocks. In Figure 3 the example of, the announcement packet is composed of 3 blocks. Among the 3 blocks constituting the announcement packet, data indicating that the packet is an announcement packet defined by the BLE standard is stored in block 1. In Figure 3 ,"Name" represents the name of the data to be stored. "Offset" represents the position where the data represented by "Name" is stored as the position (bytes) from the beginning of the announcement packet. "Value" represents the numerical value of the data stored at the position indicated by "Offset". "Detail" is the description of each numerical value and is not included in the actually sent announcement packet.

[0041] In the cooperation start stage, when both the wearable devices 10A and 10B enter the space where the vital sign monitor 20 is set, the second vital sign data as the biological information of "the first object among the two objects existing in the same space" and the second vital sign data as the biological information of "the second object among the two objects existing in the same space" are detected by the second vital sign sensor 21 of the vital sign monitor 20. As Figure 3 shown, for example, the second control unit 24 of the vital sign monitor 20 stores the second vital sign data of the first object in block 2 among the 3 blocks constituting the announcement packet, and stores the second vital sign data of the second object in block 3. Hereinafter, the first object may sometimes be referred to as the first object, and the second object may be referred to as the second object.

[0042] As an example, in block 2, "0x43" is stored at the position of "Heart Rate" as the value representing the heart rate of the first subject. "0x43" represents a heart rate of 67 bpm. As an example, in block 2, "0x036C" is stored at the position of "RRI 1" as the value representing the RRI of the first subject, and "0x039F" is stored at the position of "RRI 2" as the value representing the RRI of the first subject. "0x036C" represents an RRI of 876 msec, and "0x039F" represents an RRI of 927 msec.

[0043] As an example, in block 3, "0x46" is stored at the position of "Heart Rate" as the value representing the heart rate of the second subject. "0x46" represents a heart rate of 70 bpm. As an example, in block 3, "0x0357" is stored at the position of "RRI 1" as the value representing the RRI of the second subject, and "0x0348" is stored at the position of "RI2" as the value representing the RRI of the second subject. "0x0357" represents an RRI of 855 msec, and "0x0348" represents an RRI of 840 msec.

[0044] In the present embodiment, for example, an announcement packet is transmitted from the vital sign monitor 20 at 1-second intervals. Therefore, when the heart rate is higher than 60 bpm, as Figure 3 shown, for one subject, multiple RRIs may be obtained within 1 second. On the other hand, when the heart rate is lower than 60 bpm, for one subject, sometimes not even one RRI may be obtained within 1 second.

[0045] As described above, in the cooperation start phase, when the wearable devices 10A and 10B enter the space where the vital sign monitor 20 is provided, an announcement packet storing the second vital sign data of the first subject in block 2 and the second vital sign data of the second subject in block 3 is transmitted from the vital sign monitor 20 at 1-second intervals.

[0046] In step S2, the first control unit 15 of the wearable device 10A continues to store the first vital sign data detected by the first vital sign sensor 11 as the biological information of the wearer A in the first storage unit 13, and extracts the second vital sign data of the first subject and the second vital sign data of the second subject from the multiple announcement packets received within a certain time, and stores the extracted second vital sign data in the first storage unit 13.

[0047] As a result, as Figure 4As shown, in the first storage unit 13, time series data of the first vital sign data of the wearer A detected within a certain period of time, time series data of the second vital sign data of the first subject detected within a certain period of time (the second vital sign data stored in block 2), and time series data of the second vital sign data of the second subject detected within a certain period of time (the second vital sign data stored in block 3) are stored. In addition, in Figure 4 only the RRI is shown as each vital sign data. Figure 5 is a diagram showing a part of the RRI time series data of the wearer A represented by the pulsation waveform W. As shown in this Figure 5 the time between a pair of adjacent peaks among the multiple peaks appearing in the pulsation waveform W is the RRI.

[0048] Returning to Figure 2 , the first control unit 15 of the wearable device 10A calculates a correlation value between the first vital sign data detected by the first vital sign sensor 11 and the second vital sign data included in the notification packet based on the time series data of each vital sign data stored in the first storage unit 13 (step S3). As in the present embodiment, when the notification packet includes the second vital sign data of multiple subjects, the first control unit 15 calculates the correlation value between the first vital sign data and the second vital sign data for each of the multiple subjects.

[0049] Specifically, the first control unit 15 calculates a correlation value between the first vital sign data of the wearer A and the second vital sign data of the first subject based on the time series data of the first vital sign data of the wearer A and the time series data of the second vital sign 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 sign data of the wearer A and the second vital sign data of the second subject based on the time series data of the first vital sign data of the wearer A and the time series data of the second vital sign data of the second subject stored in the first storage unit 13.

[0050] The correlation value includes at least one of a correlation coefficient and an average of absolute differences. As Figure 4 shown, in the present embodiment, as an example, both the correlation coefficient and the average of absolute differences are calculated as the correlation value. The calculation methods of the correlation coefficient and the average of absolute differences are well-known, and thus the description thereof is omitted in this specification. In the example shown in Figure 4 , approximately 0.983 is calculated as the correlation coefficient between the first vital sign data of the wearer A and the second vital sign data of the first subject, and approximately 4.142 is calculated as the average of absolute differences between the first vital sign data of the wearer A and the second vital sign data of the first subject. In addition, in Figure 4In the example shown, the correlation coefficient between the first vital sign data of wearer A and the second vital sign data of the second subject is calculated to be approximately -0.083, and the average of the absolute differences between the first vital sign data of wearer A and the second vital sign data of the second subject is calculated to be approximately 52.857.

[0051] Return to Figure 2 , the first control unit 15 of the wearable device 10A determines whether the correlation value calculated in the above step S3 satisfies a specified correlation condition (step S4). If the result in this step S4 is "no", that is, if the correlation value calculated in step S3 does not satisfy the specified correlation condition, the first control unit 15 ends Figure 2 the actions shown. In this case, the first control unit 15 continues to generate an image signal representing the pulsation waveform, heart rate, RRI, etc. of wearer A based on the time series data of the first vital sign data obtained from the first vital sign sensor 11 and outputs it to the first operation display unit 14. Thus, after Figure 2 the actions shown end, an image representing the pulsation waveform, heart rate, RRI, etc. of wearer A based on the first vital sign data is also displayed on the touchpad of the first operation display unit 14.

[0052] On the other hand, if the result in the above step S4 is "yes", that is, if the correlation value calculated in step S3 satisfies the specified correlation condition, the first control unit 15 causes the wearable device 10A to start monitoring the second vital sign data included in the notification packet as the biological information of wearer A (step S5). As in this embodiment, when the second vital sign data of multiple subjects is included in the notification packet, the first control unit 15 causes the wearable device 10A to start monitoring the second vital sign data for which the correlation value calculated in step S3 satisfies the correlation condition.

[0053] The specified correlation condition includes at least one of a first correlation condition that is a correlation coefficient greater than a first threshold among the correlation coefficients calculated for each of the multiple subjects, a second correlation condition that is an average of absolute differences smaller than a second threshold among the averages of absolute differences calculated for each of the multiple subjects, a third correlation condition that is the largest correlation coefficient among the correlation coefficients calculated for each of the multiple subjects, and a fourth correlation condition that is the smallest average of absolute differences among the averages of absolute differences calculated for each of the multiple subjects. As an example, the first threshold is 0.90 and the second threshold is 20.

[0054] In Figure 4In the example shown, the correlation values (correlation coefficient and average absolute difference) between the first vital sign data of the wearer A and the second vital sign data of the first subject satisfy all the correlation conditions from the first correlation condition to the fourth correlation condition. In this case, the first control unit 15 causes the wearable device 10A to start monitoring the second vital sign data of the first subject for which the correlation values satisfying all the correlation conditions are obtained in step S5. Specifically, after the first control unit 15 determines the block 2 storing the second vital sign data of the first subject among the three blocks constituting the notification packet as the monitoring target block, every time a notification packet is received from the vital sign monitor 20 at 1-second intervals through the scanning operation of the first wireless communication unit 12, the second vital sign data stored in the block 2 as the monitoring target block of the notification packet is acquired as the biological information of the wearer A.

[0055] Through the processing of steps S1 to S5 described above, cooperation is established between the wearable device 10A and the vital sign monitor 20. That is, the second vital sign data of the first subject among the second vital sign data of the two subjects detected by the vital sign monitor 20 is associated with the wearer A as the biological information of the wearer A of the wearable device 10A.

[0056] The first control unit 15 stores the second vital sign data obtained from the block 2 as the monitoring target block of the notification packet as described above in the first storage unit 13 as the biological information of the wearer A, and stops the operation of the first vital sign sensor 11 (step S6). As a result, after the start of monitoring, the first storage unit 13 stores the second vital sign data included in the notification packet received by the first wireless communication unit 12. In addition, after the start of monitoring, the first vital sign sensor 11 stops detecting the first vital sign data of the wearer A.

[0057] Then, the first control unit 15 outputs a predetermined image signal to the first operation display unit 14, and thereby displays an image indicating that the wearable device 10A can be removed on the touch panel of the first operation display unit 14 (step S7). As a result, after the start of monitoring, the first operation display unit 14 notifies the wearer A that the wearable device 10A can be removed.

[0058] The above is the description of the operation of the wearable device 10A in the cooperation start phase, but the operation of the wearable device 10B in the cooperation start phase is also the same as Figure 2The actions shown are the same. For example, when the correlation value between the first vital sign data of the wearer B detected by the first vital sign sensor 11 of the wearable device 10B and the second vital sign data of the second subject included in the notification packet received from the vital sign monitor 20 satisfies the correlation condition, the first control unit 15 of the wearable device 10B causes the wearable device 10B to start monitoring the second vital sign data of the second subject included in the notification packet.

[0059] Specifically, in this case, after the first control unit 15 of the wearable device 10B determines the block 3 storing the second vital sign data of the second subject among the three blocks constituting the notification packet as the monitoring target block, every time a notification packet is received from the vital sign monitor 20 at an interval of 1 second, the second vital sign data stored in the block 3 as the monitoring target block of the notification packet is acquired as the biological information of the wearer B. Thus, cooperation is established between the wearable device 10B and the vital sign monitor 20. That is, the second vital sign data of the second subject among the second vital sign data of the two subjects detected by the vital sign monitor 20 is associated with the wearer B as the biological information of the wearer B of the wearable device 10B.

[0060] Figure 6 It is a sequence diagram showing the actions of the wearable devices 10A and 10B and the action of the vital sign monitor 20 at the cooperation start stage. As Figure 6 shown, in step S100, the wearable devices 10A and 10B respectively receive the notification packet P1 sent from the vital sign monitor 20 through the scanning action of the first wireless communication unit 12 of their own devices.

[0061] When the wearable device 10A receives the first notification packet P1, while continuing to store the first vital sign data detected by the first vital sign sensor 11 of its own device as the biological information of the wearer A in the first storage unit 13 of its own device, it receives the notification packet sent from the vital sign monitor 20 at an interval of 1 second for a certain period of time. Every time the wearable device 10A receives a notification packet at an interval of 1 second, it extracts the second vital sign data of the first subject (the second vital sign data stored in block 2) and the second vital sign data of the second subject (the second vital sign data stored in block 3) from the received notification packet, and stores the extracted second vital sign data in the first storage unit 13 of its own device.

[0062] Similarly, when the wearable device 10B receives the initial announcement packet P1, while continuing to store the first vital sign data detected by the first vital sign sensor 11 of the device itself as the biological information of the wearer B in the first storage unit 13 of the device itself, it receives the announcement packets sent from the vital sign monitor 20 at 1-second intervals for a certain period of time. Whenever the wearable device 10B receives an announcement packet at 1-second intervals, it extracts the second vital sign data of the first subject (the second vital sign data stored in block 2) and the second vital sign data of the second subject (the second vital sign data stored in block 3) from the received announcement packet, and stores the extracted second vital sign data in the first storage unit 13 of the device itself.

[0063] In step S101, if a certain period of time has elapsed since the wearable devices 10A and 10B respectively received the announcement packet P10 sent from the vital sign monitor 20, the wearable devices 10A and 10B respectively calculate the correlation value between the first vital sign data and the second vital sign data for each of the multiple subjects according to the time series data of the respective vital sign data stored in the first storage unit 13 of the device itself.

[0064] In step S102, when the wearable device 10A determines that the correlation value between the first vital sign data of the wearer A and the second vital sign data of the first subject (the second vital sign data stored in block 2) satisfies the correlation condition, it starts to monitor the second vital sign data included in block 2 of the announcement packet as the biological information of the wearer A. Thus, the cooperation between the wearable device 10A and the vital sign monitor 20 is established. That is, the second vital sign data of the first subject among the second vital sign data of the two subjects detected by the vital sign monitor 20 is associated with the wearer A as the biological information of the wearer A of the wearable device 10A.

[0065] In step S103, when the wearable device 10B determines that the correlation value between the first vital sign data of the wearer B and the second vital sign data of the second subject (the second vital sign data stored in block 3) satisfies the correlation condition, it starts to monitor the second vital sign data included in block 3 of the announcement packet as the biological information of the wearer B. Thus, the cooperation between the wearable device 10B and the vital sign monitor 20 is established. That is, the second vital sign data of the second subject among the second vital sign data of the two subjects detected by the vital sign monitor 20 is associated with the wearer B as the biological information of the wearer B of the wearable device 10B.

[0066] After establishing the cooperation between the wearable device 10A and the vital sign monitor 20, in step S104, when the wearable device 10A receives the announcement packet P11 from the vital sign monitor 20 through the scanning operation of the first wireless communication unit 12 of the device itself, in step S105, the wearable device 10A obtains the second vital sign data included in block 2 of the announcement packet P11 as the biological information of the wearer A, and stores the obtained second vital sign data in the first storage unit 13 of the device itself. Thereafter, every time the wearable device 10A receives an announcement packet from the vital sign monitor 20 at 1-second intervals, it performs the same operation as in step S105.

[0067] After establishing the cooperation between the wearable device 10B and the vital sign monitor 20, in step S104, when the wearable device 10B receives the announcement packet P11 from the vital sign monitor 20 through the scanning operation of the first wireless communication unit 12 of the device itself, in step S106, the wearable device 10B obtains the second vital sign data included in block 3 of the announcement packet P11 as the biological information of the wearer B, and stores the obtained second vital sign data in the first storage unit 13 of the device itself. Thereafter, every time the wearable device 10B receives an announcement packet from the vital sign monitor 20 at 1-second intervals, it performs the same operation as in step S106.

[0068] Figure 7 It is a flowchart showing the operation of the wearable device 10A in the cooperation release stage of the biological information detection system 1. As Figure 7 shown, after starting the monitoring, that is, after establishing the cooperation between the wearable device 10A and the vital sign monitor 20, the first control unit 15 of the wearable device 10A determines whether it has received (detected) an announcement packet from the vital sign monitor 20 through the scanning operation of the first wireless communication unit 12 (step S11).

[0069] If the result in the above step S11 is "Yes", that is, if it has received an announcement packet from the vital sign monitor 20 through the scanning operation of the first wireless communication unit 12, it is presumed that the wearable device 10A is present in the space where the vital sign monitor 20 is set. In this case, the first control unit 15 continues to receive announcement packets at 1-second intervals through the scanning operation of the first wireless communication unit 12, and obtains the second vital sign data stored in block 2, which is the monitored object block of the announcement packet, as the biological information of the wearer A.

[0070] On the other hand, when the result in step S11 is "No", that is, when the announcement packet from the vital sign monitor 20 is not received during the scanning operation by the first wireless communication unit 12, it is presumed that the wearable device 10A has moved outside the space where the vital sign monitor 20 is set. In this case, the first control unit 15 outputs a prescribed image signal to the first operation display unit 14, and an image indicating that the communication with the vital sign monitor 20 has been cut off is displayed on the touch panel of the first operation display unit 14 (step S12), and then the first vital sign sensor 11 is activated (step S13).

[0071] After the cooperation between the wearable device 10A and the vital sign monitor 20 is established by the operation of the wearable device 10A in the cooperation release phase as described above, when the announcement packet is not received by the first wireless communication unit 12 of the wearable device 10A, the first operation display unit 14 of the wearable device 10A notifies that the communication with the vital sign monitor 20 has been cut off, and the first vital sign sensor 11 of the wearable device 10A resumes detecting the first vital sign data as the biological information of the wearer A. Thus, the cooperation between the wearable device 10A and the vital sign monitor 20 is released.

[0072] The operation of the wearable device 10B in the cooperation release phase is also the same as Figure 7 the operation shown. After the cooperation between the wearable device 10B and the vital sign monitor 20 is established, when the announcement packet is not received by the scanning operation of the first wireless communication unit 12, the first control unit 15 of the wearable device 10B outputs a prescribed image signal to the first operation display unit 14, and thus an image indicating that the communication with the vital sign monitor 20 has been cut off is displayed on the touch panel of the first operation display unit 14, and then the first vital sign sensor 11 is activated.

[0073] After the cooperation between the wearable device 10B and the vital sign monitor 20 is established by the operation of the wearable device 10B in the cooperation release phase as described above, when the announcement packet is not received by the first wireless communication unit 12 of the wearable device 10B, the first operation display unit 14 of the wearable device 10B notifies that the communication with the vital sign monitor 20 has been cut off, and the first vital sign sensor 11 of the wearable device 10B resumes detecting the first vital sign data as the biological information of the wearer B. Thus, the cooperation between the wearable device 10B and the vital sign monitor 20 is released.

[0074] As described above, in the present embodiment, when the wearable device 10A receives the notification packet from the vital sign monitor 20, the correlation value between the first vital sign data of the wearer A detected by the wearable device 10A and the second vital sign data included in the notification packet is calculated. When the calculated correlation value satisfies the specified correlation condition, the wearable device 10A starts monitoring the second vital sign data included in the notification packet as the biological information of the wearer A. In particular, when the notification packet includes the second vital sign data of multiple subjects as in the present embodiment, the correlation value between the first vital sign data and the second vital sign data is calculated for each of the multiple subjects, and the wearable device 10A starts monitoring the second vital sign data that has obtained the correlation value satisfying the correlation condition among the calculated correlation values.

[0075] Accordingly, without performing the complicated operation of registering in advance the identification information (such as user ID) of all subjects using the system as in the prior art, it is possible to automatically associate the second vital sign data of one subject among the second vital sign data of multiple subjects detected by the vital sign monitor 20 with the wearer A of the wearable device 10A as the biological information of the wearer A. As a result, the wearer A of the wearable device 10A can receive services from the vital sign monitor 20 (such as the provision of the vital sign data of the wearer A). Even if the wearer A removes the wearable device 10A, the wearable device 10A can continuously collect and record the second vital sign data detected by the vital sign monitor 20 as the biological information of the wearer A. The same effect can also be obtained for the wearable device 10B.

[0076] In addition, in the present embodiment, after starting the monitoring, that is, after establishing the cooperation between the wearable device 10A and the vital sign monitor 20, the first storage unit 13 of the wearable device 10A stores the second vital sign data included in the notification packet received by the first wireless communication unit 12 of the wearable device 10A. The first vital sign sensor 11 of the wearable device 10A stops detecting the first vital sign data of the wearer A, and the first operation display unit 14 of the wearable device 10A notifies the wearer A that the wearable device 10A can be removed.

[0077] Accordingly, even if the wearer A removes the wearable device 10A, it is possible to continuously collect and record the second vital sign data detected by the vital sign monitor 20 as the biological information of the wearer A while suppressing the power consumption of the wearable device 10A. The same effect can also be obtained for the wearable device 10B.

[0078] In addition, in the present embodiment, after the monitoring is started, that is, after the cooperation between the wearable device 10A and the vital sign monitor 20 is established, when the notification packet is not received by the first wireless communication unit 12 of the wearable device 10A, the first operation display unit 14 of the wearable device 10A notifies that the communication with the vital sign monitor 20 is cut off, and the first vital sign sensor 11 of the wearable device 10A starts detecting the first vital sign data again as the biological information of the wearer A.

[0079] Thereby, even when the communication between the wearable device 10A and the vital sign monitor 20 is cut off and the wearable device 10A is in a state where it cannot receive the service from the vital sign monitor 20, the first vital sign data detected by the first vital sign sensor 11 can be continuously collected and recorded as the biological information of the wearer A. The same effect can also be obtained for the wearable device 10B.

[0080] In addition, 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 gist of the present invention.

[0081] For example, in the above-described embodiment, an example is given in which the control unit (the first control unit 15) of the present invention is provided in the wearable biological information detection device, but the control unit of the present invention does not necessarily need to be provided in the wearable biological information detection device. For example, the control unit of the present invention can also be provided in a host device of a system such as a server device. Alternatively, the control unit of the present invention can also be provided in an information processing device such as a smartphone that cooperates with the wearable biological information detection device. In addition, in the above-described embodiment, the BLE standard is exemplified as the communication standard used for the communication between the wearable biological information detection device and the fixed biological information detection device, but the communication standard is not limited to the BLE standard as long as the present invention can be realized.

[0082] In the above-described embodiment, examples of the wearable biological information detection device of the present invention include wearable devices such as a pedometer and a smart watch worn on the wrist of an object person, etc. However, the wearable biological information detection device of the present invention includes not only devices worn on the outside of the body of the object person but also devices implanted inside the body of the object person.

[0083] In the above-described embodiment, as data including the second biological information transmitted from the fixed biological information detection device, an advertisement packet, which is a type of beacon packet that can be received by a plurality of unspecified devices operating according to the same communication standard, is exemplified. However, the data transmitted from the fixed biological information detection device is not limited to beacon packets such as advertisement packets. As long as the data embeds a plurality of biological information, the present invention can also be implemented using a communication method other than a beacon using the BLE standard. For example, when the fixed biological information detection device embeds a plurality of biological information in an advertisement packet and transmits it, the advertisement packet can be sent by broadcast communication or by connection communication.

[0084] In the above-described embodiment, as the first notification unit that notifies that the wearable biological information detection device can be removed and the communication with the fixed biological information detection device is cut off, the first operation display unit 14, which is a display device of the touchpad type, is exemplified. However, the first notification unit of the present invention is not limited to a display device of the touchpad type. For example, a speaker can also be used as the first notification unit, and the above information can be notified by sound output from the speaker. Alternatively, a vibrator can also be used as the first notification unit, and the above information can be notified by vibration of the vibrator. Alternatively, at least two or more of a display device, a speaker, and a vibrator can be combined to notify the above information.

[0085] In the above-described embodiment, a case where at least one of the correlation coefficient and the average of absolute differences is calculated as the correlation value is exemplified. However, as long as it is a value representing the correlation between the first vital sign data and the second vital sign data, other values can also be calculated as the correlation value. Further, in the above-described embodiment, an example is given in which the specified correlation condition includes a first correlation condition that is a correlation coefficient greater than the first threshold value calculated for each of a plurality of subjects, a second correlation condition that is an average of absolute differences smaller than the second threshold value calculated for each of a plurality of subjects, a third correlation condition that is the maximum correlation coefficient calculated for each of a plurality of subjects, and a fourth correlation condition that is the minimum average of absolute differences calculated for each of a plurality of subjects. If the advertisement packet contains only the second vital sign data of one subject, the specified correlation condition may also include at least one of the first correlation condition that the correlation coefficient is greater than the first threshold value and the second correlation condition that the average of absolute differences is smaller than the second threshold value.

[0086] The biological information detection system according to one aspect of the present invention may also have the following structure.

[0087] A biological information detection system according to an aspect of the present invention includes: a wearable biological information detection device; a fixed biological information detection device; and a control unit. The wearable biological information detection device includes: a first detection unit that detects first biological information that is biological information of a wearer; and a first communication unit that communicates with the fixed biological information detection device. The fixed biological information detection device includes: a second detection unit that detects second biological information that is biological information of a subject; and a second communication unit that transmits data including the second biological information. When the control unit receives the data by the first communication unit, the control unit calculates a correlation value between the first biological information detected by the first detection unit and the second biological information included in the data, and when the calculated correlation value satisfies a specified correlation condition, causes the wearable biological information detection device to start monitoring the second biological information included in the data as biological information of the wearer.

[0088] In a biological information detection system according to an aspect of the present invention, the correlation value may include at least one of a correlation coefficient and an average absolute difference, 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 is less than a second threshold value.

[0089] In a biological information detection system according to an aspect of the present invention, when the data includes second biological information of a plurality of subjects, the control unit may calculate a correlation value between the first biological information and the second biological information for each of the plurality of subjects, and cause the wearable biological information detection device to start monitoring the second biological information for which the calculated correlation value satisfies the correlation condition.

[0090] In a biological information detection system according to an aspect of the present invention, the correlation value may include at least one of a correlation coefficient and an average absolute difference, and the correlation condition may include at least one of the following conditions: a first correlation condition that is a correlation coefficient greater than a first threshold value among the correlation coefficients calculated for each of the plurality of subjects, a second correlation condition that is an average absolute difference less than a second threshold value among the average absolute differences calculated for each of the plurality of subjects, a third correlation condition that is the largest correlation coefficient among the correlation coefficients calculated for each of the plurality of subjects, and a fourth correlation condition that is the smallest average absolute difference among the average absolute differences calculated for each of the plurality of subjects.

[0091] In a biological information detection system according to an aspect of the present invention, it is also possible that the wearable biological information detection device further includes: a first storage unit that stores the second biological information included in the data received by the first communication unit after the start of monitoring; and a first notification unit that notifies, after the start of monitoring, that the wearable biological information detection device can be removed, and the first detection unit stops detecting the first biological information after the start of monitoring.

[0092] In a biological information detection system according to an aspect of the present invention, it is also possible that when the data is not received by the first communication unit after the start of monitoring, the first notification unit notifies that the communication with the fixed biological information detection device has been cut off, and the first detection unit starts detecting the first biological information again.

[0093] In a biological information detection system according to an aspect of the present invention, it is also possible that the second communication unit transmits a beacon packet including the second biological information as the data including the second biological information.

[0094] A wearable biological information detection device according to an aspect of the present invention may also have the following configuration.

[0095] A wearable biological information detection device according to an aspect of the present invention includes: a first detection unit that detects first biological information as biological information of a wearer; a first communication unit that communicates with a fixed biological information detection device that detects second biological information as biological information of a target person; and a control unit that, when data from the fixed biological information detection device is received by the first communication unit, calculates a correlation value between the first biological information detected by the first detection unit and the second biological information included in the data, and when the calculated correlation value satisfies a specified correlation condition, causes the wearable biological information detection device to start monitoring the second biological information included in the data as biological information of the wearer.

[0096] In a wearable biological information detection device according to an aspect of the present invention, it is also possible that the correlation value includes at least one of a correlation coefficient and an average absolute difference, and the correlation condition includes 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 is less than a second threshold value.

[0097] In the wearable biological information detection device according to one aspect of the present invention, it may also be that when the control unit includes the second biological information of a plurality of subjects in the data, the control unit calculates a correlation value between the first biological information and the second biological information for each of the plurality of subjects, and causes the wearable biological information detection device to start monitoring the second biological information for which the calculated correlation value satisfies the correlation condition.

[0098] In the wearable biological information detection device according to one aspect of the present invention, it may also be that the correlation value includes at least one of a correlation coefficient and an average absolute difference, and the correlation condition includes at least one of the following conditions: a first correlation condition that is a correlation coefficient greater than a first threshold among the correlation coefficients calculated for each of the plurality of subjects; a second correlation condition that is an average absolute difference smaller than a second threshold among the average absolute differences calculated for each of the plurality of subjects; a third correlation condition that is the maximum correlation coefficient among the correlation coefficients calculated for each of the plurality of subjects; and a fourth correlation condition that is the minimum average absolute difference among the average absolute differences calculated for each of the plurality of subjects.

[0099] It may also be that the wearable biological information detection device according to one aspect of the present invention further includes: a first storage unit that stores the second biological information included in the data received by the first communication unit after the start of the monitoring; and a first notification unit that notifies, after the start of the monitoring, that the wearable biological information detection device can be removed, and the first detection unit stops detecting the first biological information after the start of the monitoring.

[0100] In the wearable biological information detection device according to one aspect of the present invention, it may also be that when the data is not received by the first communication unit after the start of the monitoring, the first notification unit notifies that the communication with the fixed biological information detection device has been cut off, and the first detection unit starts detecting the first biological information again.

[0101] In the wearable biological information detection device according to one aspect of the present invention, it may also be that the data received by the first communication unit from the fixed biological information detection device is a beacon packet including the second biological information.

[0102] The biological information detection method according to one aspect of the present invention may also have the following configuration.

[0103] A biological information detection method according to one aspect of the present invention uses a wearable biological information detection device that detects the biological information of a wearer as first biological information and a fixed biological information detection device that detects the biological information of a subject as second biological information. The biological information detection method includes the following steps: when the wearable biological information detection device receives data from the fixed biological information detection device, calculating a correlation value between the first biological information detected by the wearable biological information detection device and the second biological information included in the data; and when the calculated correlation value satisfies a specified correlation condition, causing the wearable biological information detection device to start monitoring the second biological information included in the data as the biological information of the wearer.

Claims

1. A biological information detection system, comprising: A wearable biological information detection device; A fixed biological information detection device; and A control unit, wherein, The wearable biological information detection device has: a first detection unit that detects first biological information that is the biological information of the wearer; and a first communication unit that communicates with the fixed biological information detection device, The fixed biological information detection device has: a second detection unit that detects second biological information that is the biological information of the subject; and a second communication unit that transmits data including the second biological information, When the control unit receives the data by the first communication unit, it calculates a correlation value between the first biological information detected by the first detection unit and the second biological information included in the data. When the calculated correlation value satisfies a specified correlation condition, the wearable biological information detection device starts monitoring the second biological information included in the data as the biological information of the wearer. After the start of the monitoring, the first detection unit stops detecting the first biological information.

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

3. The biological information detection system according to claim 1, wherein, When the data includes the second biological information of a plurality of subjects, the control unit calculates the correlation value between the first biological information and the second biological information for each of the plurality of subjects, and causes the wearable biological information detection device to start monitoring the second biological information for which the calculated correlation value satisfies the correlation condition.

4. The biological information detection system according to claim 3, wherein, The correlation value includes at least one of a correlation coefficient and an average absolute difference. The correlation condition includes at least one of the following conditions: a first correlation condition that is a correlation coefficient greater than the first threshold value among the correlation coefficients calculated for each of the plurality of subjects, a second correlation condition that is an average absolute difference smaller than the second threshold value among the average absolute differences calculated for each of the plurality of subjects, a third correlation condition that is the largest correlation coefficient among the correlation coefficients calculated for each of the plurality of subjects, and a fourth correlation condition that is the smallest average absolute difference among the average absolute differences calculated for each of the plurality of subjects.

5. The biological information detection system according to claim 1, wherein, The wearable biological information detection device further has: a first storage unit that stores the second biological information included in the data received by the first communication unit after the start of the monitoring; and a first notification unit that notifies, after the start of the monitoring, that the wearable biological information detection device can be removed.

6. The biological information detection system according to claim 5, wherein, When the data is not received by the first communication unit after the start of the monitoring, the first notification unit notifies that the communication with the fixed biological information detection device has been cut off, and the first detection unit starts detecting the first biological information again.

7. The biological information detection system according to claim 1, wherein, The second communication unit transmits a beacon packet including the second biological information as the data including the second biological information.

8. A wearable biological information detection device, comprising: A first detection unit that detects first biological information that is biological information of a wearer; A first communication unit that communicates with a fixed biological information detection device that detects second biological information that is biological information of a target person; and A control unit that, when receiving data from the fixed-type biological information detection device by the first communication unit, calculates a correlation value between the first biological information detected by the first detection unit and the second biological information included in the data, and when the calculated correlation value satisfies a specified correlation condition, causes the wearable biological information detection device to start monitoring the second biological information included in the data as the biological information of the wearer. After the start of the monitoring, the first detection unit stops detecting the first biological information.

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

10. The wearable biological information detection device according to claim 8, wherein When the data includes the second biological information of a plurality of the subjects, the control unit calculates a correlation value between the first biological information and the second biological information for each of the plurality of the subjects, and causes the wearable biological information detection device to start monitoring the second biological information for which the calculated correlation value satisfies the correlation condition.

11. The wearable biological information detection device according to claim 10, wherein The correlation value includes at least one of a correlation coefficient and an average of absolute differences. The correlation condition includes at least one of the following conditions: a first correlation condition that is a correlation coefficient greater than a first threshold value among the correlation coefficients calculated for each of the plurality of the subjects, a second correlation condition that is an average of absolute differences less than a second threshold value among the averages of absolute differences calculated for each of the plurality of the subjects, a third correlation condition that is the maximum correlation coefficient among the correlation coefficients calculated for each of the plurality of the subjects, and a fourth correlation condition that is the minimum average of absolute differences among the averages of absolute differences calculated for each of the plurality of the subjects.

12. The wearable biological information detection device according to claim 8, wherein The wearable biological information detection device further includes: a first storage unit that stores the second biological information included in the data received by the first communication unit after the start of the monitoring; and a first notification unit that notifies, after the start of the monitoring, that the wearable biological information detection device can be removed.

13. The wearable biological information detection device according to claim 12, wherein When the data is not received by the first communication unit after the start of the monitoring, the first notification unit notifies that the communication with the fixed biological information detection device has been cut off, and the first detection unit starts detecting the first biological information again.

14. The wearable biological information detection device according to claim 8, wherein The data received by the first communication unit from the fixed biological information detection device is a beacon packet including the second biological information.

15. A biological information detection method that uses a wearable biological information detection device that detects the biological information of a wearer as first biological information and a fixed-type biological information detection device that detects the biological information of an object person as second biological information, wherein The biological information detection method includes the following steps: When the wearable biological information detection device receives data from the fixed biological information detection device, calculating a correlation value between the first biological information detected by the wearable biological information detection device and the second biological information included in the data; and When the calculated correlation value satisfies a specified correlation condition, causing the wearable biological information detection device to start monitoring the second biological information included in the data as the biological information of the wearer, and stopping the detection of the first biological information after the start of the monitoring.

Images