Safety confirmation system, control device, living room, and safety confirmation method

Abstract

To suppress erroneous detection and increase in a processing load in a system for confirming safety of an object person.SOLUTION: A safety confirmation system (1) includes: a first sensor (41) for noncontactly sensing biological information on an object person in a predetermined detection range; a second sensor (42) for noncontactly detecting the object person in a detection range of the first sensor; and a control unit (30) for controlling the first sensor (41) and the second sensor (42) for causing the biological information on the object person to be measured by the first sensor (41) when the second sensor (42) detects that the object person is present in the detection range. The control unit (30) brings the data of the biological information on the object person measured by the first sensor (41) corresponding to a first detection range and the data of the biological information on the object person measured by the first sensor (41) corresponding to a second detection range into a series of continuous data.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a safety confirmation system, a control device, a room, and a safety confirmation method. [Background technology]

[0002] There are still many cases of acute illnesses and accidents that occur at home. In recent years, as the population has aged and the number of people living alone has increased, responding to accidents and acute illnesses that occur at home has become increasingly important.

[0003] For example, Patent Document 1 describes a building in which sensors are installed in the living space where residents live, and when the sensors detect a preset abnormal state, a notification is sent to prompt the residents to check their safety. Patent Document 2 describes a body movement signal processing device capable of detecting the body movement of a subject in a bathroom. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2015-26146 A (Published on February 5, 2015) [Patent Document 2] Patent No. 6537701 (published on September 8, 2017) Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the above-mentioned conventional technology, there is a risk that the sensor that measures the respiration rate of the person to be checked for safety may erroneously detect the measurement target. In addition, if the sensor attempts to measure the respiration rate even when the person is not within the detection range, the processing load of the system increases.

[0006] One aspect of the present invention has been made in consideration of the above problems, and aims to suppress false detections and increased processing load in a system for confirming the safety of a subject. [Means for solving the problem]

[0007] In order to solve the above problems, a safety confirmation system according to one embodiment of the present invention includes a first sensor that non-contact senses biometric information of a subject within a specified detection range, a second sensor that non-contactly detects the subject in the detection range of the first sensor, and a control unit that controls the first sensor and the second sensor to measure the biometric information of the subject when the second sensor detects the presence of the subject in the detection range, and when the second sensor corresponding to the first detection range and the second sensor corresponding to the second detection range detect that the subject has moved from the first detection range to a second detection range adjacent to the first detection range, the control unit treats the data of the biometric information of the subject measured by the first sensor corresponding to the first detection range and the data of the biometric information of the subject measured by the first sensor corresponding to the second detection range as a continuous series of data.

[0008] The safety confirmation system according to each aspect of the present invention may be realized by a computer. In this case, the control program of the safety confirmation system that realizes the safety confirmation system on a computer by causing the computer to operate as each part (software element) of the safety confirmation system, and the computer-readable recording medium on which it is recorded, also fall within the scope of the present invention. Effect of the Invention

[0009] According to one aspect of the present invention, it is possible to suppress false detections and increased processing load in a system for confirming the safety of a subject. [Brief description of the drawings]

[0010] [Figure 1]1 is a diagram showing an overall overview of a safety confirmation system according to an embodiment of the present invention. [Diagram 2] 1 is a diagram showing an overall overview of a safety confirmation system. [Diagram 3] 4 is a diagram showing an example of installation of a first sensor and a second sensor. FIG. [Figure 4] 4 is a diagram showing an example of installation of a first sensor and a second sensor. FIG. [Diagram 5] 4 is a diagram showing an example of installation of a first sensor and a second sensor. FIG. [Figure 6] 1 is a flowchart showing a process flow in a safety confirmation system. [Figure 7] FIG. 13 is a diagram showing an example of a threshold value to be compared with the measurement result of the second sensor. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] [Embodiment] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Note that the embodiment described below is subject to various technically preferable limitations for carrying out the present invention, but the scope of the present invention is not limited to the following embodiment and illustrated examples.

[0012] [Overview] First, an overview of a safety confirmation system 1 according to the present embodiment will be described with reference to FIG. 1. FIG. 1 is a diagram showing an overview of the safety confirmation system 1. As shown in FIG. 1, The recognition system 1 is a system for checking whether there are any abnormalities in the heart rate, etc. of a resident or the like in a room 10 in a house, and if an abnormality is detected, for example, for issuing a report to an external device operated by an operator to that effect.

[0013] In the following, the safety confirmation system 1 will be described as being installed in a room 10, but the present invention is not limited to this, and a part or the whole of the system may be installed in a facility such as a hospital or in any other space. In the following, the subject of safety confirmation by the safety confirmation system 1 may be referred to as a subject.

[0014] 2 is a diagram showing an overall outline of the safety confirmation system 1. As shown in FIG. 2, the safety confirmation system 1 includes a first sensor 41, a second sensor 42, a control unit 30, a storage unit 50, and a communication unit 43.

[0015] The first sensor 41 senses the biological information of the subject within the detection range in a non-contact manner to acquire the biological information. Specifically, at least one of the subject's heart rate, respiration rate, body temperature, and blood pressure is sensed in a non-contact manner. In this embodiment, a case will be described in which the first sensor 41 senses at least one of the subject's heart rate and respiration in the detection range in a non-contact manner, and measures at least one of the subject's heart rate and respiration rate. However, the present disclosure also includes a configuration in which the first sensor 41 senses and measures other biological information in a non-contact manner. Hereinafter, the first sensor 41 will be described as a Doppler sensor, but is not limited to a Doppler sensor. For example, an infrared array sensor or an FMCW radar (Frequency Modulated Continuous Wave radar) may be used.

[0016] The second sensor 42 detects the number of subjects within the detection range in a non-contact manner. Hereinafter, the second sensor 42 will be described as being a pyroelectric sensor, but is not limited thereto and may be another sensor capable of the above-mentioned detection. When the second sensor 42 is a pyroelectric sensor, the subject is detected by sensing infrared rays emitted from the subject.

[0017] Furthermore, the detection range of the first sensor 41 and the detection range of the second sensor 42 may at least partially overlap, with one being included in the other. For example, the detection range of the second sensor 42 may be wider than the detection range of the first sensor 41. Furthermore, "one being included in the other" includes the case where they are the same.

[0018] The detection range of the first sensor 41 and the detection range of the second sensor 42 may be ranges in the same direction starting from each sensor. In other words, the first sensor 41 and the second sensor 42 may be configured to be provided on the same wall surface, ceiling or floor, built-in shelf, furniture, etc., and to radiate in the same direction. Note that an example of a configuration other than the above is one in which one sensor is provided on the ceiling facing toward the floor, and the other sensor is provided on the floor surface facing toward the ceiling.

[0019] 3 to 5 are diagrams showing installation examples of the first sensor 41 and the second sensor 42. However, in Fig. 5, for convenience of reference in the description that will be described later, the first sensors 41 are illustrated as first sensors 41a to 41d, and the second sensors 42 are illustrated as second sensors 42a to 42d.

[0020] 3 to 5 show an example of a configuration in which the first sensor 41 and the second sensor 42 are installed on the ceiling and radiate toward the floor surface. In addition, in Fig. 3 to 5, the sensors are installed close to each other and radiate in the same direction, and the detection range of the first sensor 41 and the sensing range of the second sensor 42 are the same.

[0021] 1 and the like, at least one of the first sensor 41 and the second sensor 42 included in the safety confirmation system 1 may be multiple. The same applies to other components of the safety confirmation system 1. Furthermore, the detection ranges of the multiple first sensors 41 or the detection ranges of the multiple second sensors 42 may partially overlap each other.

[0022] 4 and 5 show an example of a configuration in which a plurality of first sensors 41 and second sensors 42 are provided in the same room of the living room 10. In the case of such a configuration, the plurality of sensors cooperate with each other to cope with a case in which the subject's body spans a plurality of detection ranges.

[0023] The control unit 30 is a control device that controls the first sensor 41, the second sensor 42, etc., and supervises the entire safety confirmation system 1, and also functions as a determination unit 31, an alarm issuing unit 32, and a communication control unit 33.

[0024] In addition, when the second sensor 42 detects that a subject is present within the detection range of the first sensor 41, the control unit 30 controls the first sensor 41 to measure at least one of the subject's heart rate and respiratory rate.

[0025] The determination unit 31 performs a determination on the detection results of the first sensor 41 and the second sensor 42. The details of this determination will be described later.

[0026] When the determination unit 31 determines that an abnormality has occurred in the subject, the reporting unit 32 reports information indicating that to the reception management unit (external device) 25 via the communication unit 43. Here, the external device may be, for example, a terminal device operated by an operator shown in FIG. 1, or a mobile terminal owned by a family member of the subject. The reception management unit 25 may be operated by an operator, but may also replace part or all of the operator's work with machine learning such as AI. Since the data related to the reception handled by the operator is large in amount, it is also useful to generate judgment information using machine learning such as AI. The communication control unit 33 controls communication processing by the communication unit 43.

[0027] The memory unit 50 is a storage device that stores at least a threshold value 51 to be compared with the measurement result of the first sensor 41. The memory unit 50 may store the subject's normal biological information (data on physical constitution such as age, sex, height, and weight, data on heart rate, etc.), behavioral information (information on behavioral patterns according to days of the week, time periods, etc.), etc. Furthermore, the threshold value 51 may be calculated by the control unit 30 with reference to at least one of the biological information and behavioral information of the subject. Furthermore, information indicating the subject's heart rate or respiratory rate measured by the first sensor 41 is stored in the memory unit 50 by the control unit 30. The communication unit 43 is an interface that communicates with an external device.

[0028] 2, at least one of the control unit 30, the storage unit 50, and the communication unit 43 may be included in at least one of the first sensor 41 and the second sensor 42. The safety confirmation system 1 may also include a separate input unit (not shown) that receives user input of information stored in the storage unit 50 and is realized as buttons such as a keyboard or a touch panel. Alternatively, the information stored in the storage unit 50 may be information input via a mobile terminal such as a smartphone and acquired by the control unit 30 via the communication unit 43.

[0029] [Processing flow in safety confirmation system 1] Next, the flow of processing in the safety confirmation system 1 will be described with reference to FIGS.

[0030] First, a supplementary explanation about FIG. 5. In the living room 10 shown in FIG. 5, the detection range of the first sensor 41a and the detection range of the second sensor 42a are area A. The detection range of the first sensor 41b and the detection range of the second sensor 42b are area B. The detection range of the first sensor 41c and the detection range of the second sensor 42c are area C. The detection range of the first sensor 41d and the detection range of the second sensor 42d are area D. When the first sensors 41a to 41d are not particularly distinguished from each other, some or all of them may be referred to as the first sensor 41. When the second sensors 42a to 42d are not particularly distinguished from each other, some or all of them may be referred to as the second sensor 42.

[0031] 5 is provided only outside area A. As a result, in order to go from outside the room 10 to areas B to D, one must pass through area A. Although not essential, a second sensor 42e (not shown) is provided separately near the entrance 60.

[0032] 6 is a flowchart showing a process flow in the safety confirmation system 1. The process shown in the flowchart in FIG. 6 is started when the second sensor 42e or another second sensor 42 detects a target person entering the room 10.

[0033] The first sensors 41a to 41d start a process of irradiating microwaves and sensing the reflected microwaves (S101). Here, the frequency of the reflected microwaves is Doppler shifted according to the movement of the irradiated object. Note that it is not essential that the process of irradiating microwaves is executed in this step, and the process may be executed immediately before the process of step S103 described later is executed.

[0034] Next, the determination unit 31 determines whether or not any of the second sensors 42 has detected the presence of a target person within the detection range of the first sensor 41 (S102). If the determination unit 31 determines that any of the second sensors 42 has performed the above detection (YES in S102, detection step), then the first sensor 41 executes the process of step S103. If the determination unit 31 determines that none of the second sensors 42 has performed the above detection (NO in S102), the process of step S102 continues until any of the second sensors 42 detects a target person.

[0035] In addition, although not limited to this, when any of the second sensors 42 detects multiple subjects within the detection range, the transition to step S103 may not be performed and the process of step S102 may be continued. This is because it is assumed that multiple subjects can notice each other that an abnormality has occurred when multiple subjects are present in the vicinity. This also makes it possible to suppress erroneous measurements caused by other people being located near the subject being measured and interfering with the measurement. However, even if multiple subjects are present in the living room 10, when the multiple subjects are detected in each of the different detection ranges of the multiple second sensors 42, the first sensor 41 may subsequently execute the process of step S103. In particular, when the living room 10 is sufficiently large and the second sensors 42 that detect each subject are separated from each other, the above configuration is effective.

[0036] Next, the first sensor 41 corresponding to the second sensor 42 that performed the above detection starts measuring the heart rate and respiration rate of the subject with reference to the reflected microwaves. (S103, measurement step). Here, the first sensor 41 corresponding to the second sensor 42 means the first sensor 41 having the same detection range as the detection range of the target second sensor 42. For example, when the second sensor 42a detects that only one subject exists in the detection range of the first sensor 41a, the first sensor 41a starts measuring the heart rate and respiration rate of the subject. However, the first sensor 41a may be configured to start the measurement even when the second sensor 42a detects that multiple subjects exist in the detection range. In these cases, the first sensors 41b to 41d in which no subject exists in the detection range do not measure the heart rate and respiration rate.

[0037] Next, the determination unit 31 determines whether or not the second sensor 42 has detected that the subject has moved to an adjacent detection range (area) while the first sensor 41 is measuring the heart rate and respiratory rate (S104). If the determination unit 31 determines that the second sensor 42 has detected that the subject has moved to an adjacent detection range (YES in S104), the process proceeds to step S105. If the determination unit 31 determines that the second sensor 42 has not detected the subject (NO in S104), the process proceeds to step S106.

[0038] Next, the first sensor 41 corresponding to the detection range from which the subject moved ends the measurement of the heart rate and respiration rate, and the first sensor 41 corresponding to the detection range to which the subject moved starts measuring the heart rate and respiration rate of the subject (S105). For example, when the subject moves from area A to area B, the first sensor 41a ends the measurement of the subject's heart rate and respiration rate, and the first sensor 41b takes over and executes the above measurement. Moreover, the data measured by these first sensors 41 are treated as a series of data.

[0039] In other words, when the second sensor 42 corresponding to the first detection range and the second sensor 42 corresponding to the second detection range detect that the subject has moved from the first detection range of the first sensor 41 to a second detection range adjacent to the first detection range of the first sensor 41, the control unit 30 stores in the memory unit 50 as a continuous series of data the data of the subject's heart rate and respiration rate measured by the first sensor 41 corresponding to the first detection range and the data of the subject's heart rate and respiration rate measured by the first sensor 41 corresponding to the second detection range.

[0040] Moreover, the processes of steps S104 and S105 may be executed multiple times. That is, every time the subject moves into a detection range adjacent to the second sensor 42, the first sensor 41 that measures the heart rate and respiratory rate is switched to the one corresponding to the second sensor 42. Moreover, each measurement data is stored in the storage unit 50 as a series of data.

[0041] Next, the determination unit 31 determines whether or not the measurement result of the first sensor 41 is within a value range (hereinafter, may be simply referred to as "within the value range") defined by the threshold value 51 stored in the storage unit 50 (S106). FIG. 7 is a diagram showing an example of the threshold value 51. Here, "BPM (Beats Per Minute)" in FIG. 7 indicates the number of beats per minute. For example, in the case of the heart rate illustrated in FIG. 7, if the subject's heart rate per minute is 40 or more and 130 or less, the determination unit 31 determines that the measurement result of the first sensor 41 is within the value range, and if not, determines that the measurement result is outside the value range defined by the threshold value 51 stored in the storage unit 50 (hereinafter, may be simply referred to as "outside the value range"). In addition, in the case of the example of the respiratory rate, if the subject's respiratory rate per minute is 8 or more and 30 or less, the determination unit 31 determines that the measurement result of the first sensor 41 is within the value range, and if not, determines that the measurement result is outside the value range.

[0042] As described above, the threshold value 51 to be compared with the measurement result of the second sensor 42 may correspond to at least one of the subject's normal biological information and behavioral information. That is, although Fig. 7 illustrates a simplified configuration of the threshold value 51, the present invention is not limited thereto, and the determination unit 31 may use different threshold values ​​51 for determination depending on the subject's attributes such as age or sex, or exercise habits.

[0043] If the determination unit 31 determines that the measurement result of the first sensor 41 is outside the value range (YES in S106), the alarm unit 32 then executes the process of step S107. If the determination unit 31 determines that the measurement result of the first sensor 41 is within the value range (NO in S106), the process of step S102 is executed again.

[0044] As another aspect of step S106, the determination unit 31 may be configured to refer to a plurality of measurement results by the first sensor 41 within a recent predetermined time period and determine whether or not the proportion of the measurement results determined to be not within the value range for at least one of the subject's heart rate and respiratory rate is equal to or greater than a predetermined proportion. In the above configuration, when the determination unit 31 determines that the proportion of the plurality of measurement results determined to be not within the value range is equal to or greater than a predetermined proportion (YES in S106), the alarm unit 32 then executes the process of step S107. When the determination unit 31 determines that the proportion is less than the predetermined proportion (NO in S106), the process of step S102 is executed again.

[0045] Next, the alarm unit 32 issues information indicating that an abnormality has occurred in the target person to the reception management unit (external device) 25 via the communication unit 43 (S107). Next, the reception management unit 25 may automatically make an inquiry about, for example, the target person's safety confirmation to the house having the room 10 in which the safety confirmation system 1 is installed.

[0046] 6 may be executed until the second sensor 42e and the second sensors 42a to 42d detect the leaving of all the subjects from the room 10. When the leaving of all the subjects from the room 10 is detected, the first sensor 41 may end the process of irradiating microwaves and sensing the reflected microwaves.

[0047] According to the method described above with reference to the flowchart in Fig. 6, it is possible to suppress false positives and an increase in the processing load in the method for confirming the safety of a subject. Furthermore, when there is nothing abnormal with the subject, it is also possible to grasp the subject's life rhythm, such as which room in the house the subject spends the most time in.

[0048] <Additional Notes> It is not necessarily required that the safety confirmation system 1 includes the communication unit 43 and that the control unit 30 functions as the alarm unit 32. For example, when the control unit 30 determines that an abnormality has occurred in the subject, the control unit 30 may be configured to notify the subject of the abnormality with a buzzer or the like.

[0049] Furthermore, the measurement by the first sensor 41 and the determination based on the measurement result may be configured to perform only one of the heart rate and the respiratory rate.

[0050] Furthermore, if the measurement result of the first sensor 41 is equal to the above-mentioned threshold value 51, the measurement result may be determined to be within the range of values, or may be determined to be outside the range.

[0051] Furthermore, the living room 10 may be provided with a switch for switching between enabling and disabling the functions of at least one of the first sensor 41 and the second sensor 42 provided in the living room 10. For example, when the subject exercises in the living room 10, the switch is operated to temporarily disable the functions of the sensors, thereby preventing the safety confirmation system 1 from erroneously determining that there is an abnormality in the subject's heart rate or respiratory rate.

[0052] 〔summary〕 The safety confirmation system according to aspect 1 of the present invention comprises a first sensor that non-contact senses biometric information of a subject within a specified detection range, a second sensor that non-contact detects the number of subjects within the detection range of the first sensor, and a control unit that controls the first sensor and the second sensor to measure the biometric information of the subject when the second sensor detects that only one subject is present within the detection range.

[0053] According to the above configuration, the first sensor performs measurement only when the second sensor detects that only one subject is present within the detection range of the first sensor. This makes it possible to suppress false positives and an increase in the processing load in a system for checking the safety of subjects.

[0054] A safety confirmation system according to aspect 2 of the present invention may be configured in the above-mentioned aspect 1 such that when the second sensor detects that the subject, who was the only person present in the detection range, has left the detection range, the measurement of the subject's biometric information by the first sensor is terminated.

[0055] According to the above configuration, when the target person is no longer present within the detection range, measurement by the first sensor ends, which contributes to suppressing erroneous detection and an increase in the processing load.

[0056] A safety confirmation system according to aspect 3 of the present invention may be configured in such a way that, in aspect 1 or 2 above, when a second sensor corresponding to the first detection range and a second sensor corresponding to the second detection range detect that the subject, who was present alone, has moved from the first detection range to a second detection range adjacent to the first detection range, the data on the biometric information of the subject measured by the first sensor corresponding to the first detection range and the data on the biometric information of the subject measured by the first sensor corresponding to the second detection range are made into a continuous series of data.

[0057] According to the above configuration, even when the user moves between a plurality of detection ranges, the series of measurements by the first sensor can be continued.

[0058] A safety confirmation system according to a fourth aspect of the present invention, in any one of the first to third aspects, may be configured such that a detection range of the second sensor is wider than a detection range of the first sensor.

[0059] According to the above configuration, a configuration in which biological information of a subject is measured when a user is present within the detection range of a first sensor can be realized by using second sensors the number of which is equal to or less than that of the first sensors.

[0060] A safety confirmation system according to a fifth aspect of the present invention is any one of the first to fourth aspects, and may be configured such that the first sensor measures at least one of a heart rate and a respiratory rate of the subject.

[0061] According to the above configuration, it is possible to confirm the safety of the subject based on the subject's heart rate or respiratory rate.

[0062] The control device of aspect 6 of the present invention controls a first sensor that non-contact senses biometric information of a subject within a specified detection range and a second sensor that non-contact detects the number of subjects within the detection range of the first sensor, and is configured to cause the first sensor to measure the biometric information of the subject when the second sensor detects that only one subject is present within the detection range.

[0063] The above configuration contributes to realizing the above-mentioned safety confirmation system.

[0064] A room according to aspect 7 of the present invention is a room comprising a first sensor that non-contact senses biometric information of a subject within a specified detection range in the room, a second sensor that non-contact detects the number of subjects within the detection range of the first sensor, and a control device that controls the first sensor and the second sensor to measure the biometric information of the subject when the second sensor detects that only one subject is present within the detection range.

[0065] According to the above configuration, a room can be realized that provides the same effects as the above-mentioned safety confirmation system.

[0066] A safety confirmation method according to aspect 8 of the present invention includes a sensing step using a first sensor installed in a room and non-contact sensing biometric information of a subject within a specified detection range in the room, a detection step using a second sensor installed in the room and non-contact detecting the number of subjects within the detection range of the first sensor, and a measurement step of measuring the biometric information of the subject by the first sensor if the second sensor detects that only one subject is present within the detection range.

[0067] According to the above configuration, the same effects as those of the above-mentioned safety confirmation system are achieved.

[0068] [Software implementation example] The control blocks included in the safety confirmation system 1 (particularly the judgment unit 31, the alarm issuing unit 32 and the communication control unit 33 of the control unit 30) may be realized by a logic circuit (hardware) formed in an integrated circuit (IC chip) or the like, or may be realized by software.

[0069] In the latter case, the safety confirmation system 1 includes a computer that executes instructions of a program, which is software that realizes each function. The computer includes, for example, one or more processors, and a computer-readable recording medium that stores the program. The object of the present invention is achieved by the processor reading the program from the recording medium and executing it in the computer. The processor may be, for example, a CPU (Central Processing Unit). The recording medium may be a "non-transient tangible medium," such as a ROM (Read Only Memory), a tape, a disk, a card, a semiconductor memory, a programmable logic circuit, or the like. The system may further include a RAM (Random Access Memory) that expands the program. The program may be supplied to the computer via any transmission medium (such as a communication network or a broadcast wave) that can transmit the program. Note that one aspect of the present invention may also be realized in the form of a data signal embedded in a carrier wave, in which the program is embodied by electronic transmission.

[0070] The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention. [Explanation of symbols]

[0071] 1. Safety confirmation system 10 Room 25 Reception Management Department 30 Control unit (control device) 31 Judgment section 32 Reporting Department 33 Communication control section 41 First Sensor 42 Second Sensor 43 Communications Department 50 Storage section 51 Threshold

Claims

1. A first sensor that senses biological information of a subject within a predetermined detection range in a non-contact manner; a second sensor that detects a target person in a detection range of the first sensor in a non-contact manner; a control unit that controls the first sensor and the second sensor to measure the biological information of the subject when the second sensor detects that the subject is present within the detection range; and Equipped with The control unit is When a second sensor corresponding to the first detection range and a second sensor corresponding to the second detection range detect that the subject has moved from the first detection range to a second detection range adjacent to the first detection range, A safety confirmation system characterized in that the data of the subject's biometric information measured by a first sensor corresponding to the first detection range and the data of the subject's biometric information measured by a first sensor corresponding to the second detection range are treated as a continuous series of data.

2. The control unit is When the second sensor detects that the target person who was present in the detection range has left the detection range, The safety confirmation system according to claim 1 , further comprising: terminating measurement of the biological information of the subject by the first sensor.

3. The detection range of the second sensor is wider than the detection range of the first sensor.

3. The safety confirmation system according to claim 1 or 2.

4. The safety confirmation system according to claim 3 , wherein the first sensor measures at least one of a heart rate and a respiratory rate of the subject.

5. A first sensor that senses biological information of a subject within a predetermined detection range in a non-contact manner; a second sensor that detects a target person in a detection range of the first sensor in a non-contact manner; Control the A control device that, when the second sensor detects that the subject is present in the detection range, causes the first sensor to measure the biological information of the subject, When a second sensor corresponding to the first detection range and a second sensor corresponding to the second detection range detect that the subject has moved from the first detection range to a second detection range adjacent to the first detection range, A control device characterized in that the data of the subject's biometric information measured by a first sensor corresponding to the first detection range and the data of the subject's biometric information measured by a first sensor corresponding to the second detection range are treated as a continuous series of data.

6. A living room, a first sensor configured to non-contactly sense biological information of a subject within a predetermined detection range in the room; a second sensor that detects a target person in a detection range of the first sensor in a non-contact manner; A control device that controls the first sensor and the second sensor to measure the biological information of the subject when the second sensor detects that the subject is present in the detection range, When a second sensor corresponding to the first detection range and a second sensor corresponding to the second detection range detect that the subject has moved from the first detection range to a second detection range adjacent to the first detection range, a control device that converts data of the biological information of the subject measured by a first sensor corresponding to the first detection range and data of the biological information of the subject measured by a first sensor corresponding to the second detection range into a continuous series of data; A room characterized by comprising:

7. a sensing step using a first sensor that is installed in a room and that senses biological information of a subject within a predetermined detection range in the room in a non-contact manner; A detection step using a second sensor that is installed in the room and detects a target person in a detection range of the first sensor in a non-contact manner; a measuring step of measuring the biological information of the subject by the first sensor when the second sensor detects that the subject is present in the detection range; Including, In the detection step, when a second sensor corresponding to the first detection range and a second sensor corresponding to the second detection range detect that the subject has moved from the first detection range to a second detection range adjacent to the first detection range, A safety confirmation method characterized in that, in the measurement step, the data of the subject's biometric information measured by a first sensor corresponding to the first detection range and the data of the subject's biometric information measured by a first sensor corresponding to the second detection range are made into a continuous series of data.

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