JP6893760B2 - Biometric information measuring device, biometric information management system, control method of biometric information measuring device, control program - Google Patents

Description

The present invention relates to a biological information measuring device that measures biological information such as respiration and heartbeat of a living body.

Measuring the respiratory rate and heart rate of living organisms, not limited to humans, is important for early detection of diseases of the circulatory system and respiratory system, physical condition management during exercise, and daily health management. In recent years, a technique has been devised in which a piezoelectric element capable of detecting body movements associated with respiration and pulsation, a vibration detection medium, or the like is attached to the body of a living body to measure the respiration rate and heart rate of the living body.

Patent Document 1 discloses a respiratory / pulse measuring device capable of simultaneously measuring both a respiratory rate and a pulse rate with a single measuring probe. The respiration / pulse measuring device described in Patent Document 1 includes a measuring probe including a piezoelectric element and a charge amplifier, and the measuring probe can be worn by a patient on the chest or abdomen by the piezoelectric element. Expansion and contraction of the chest or abdomen due to breathing are detected as pressure changes.

Patent Document 2 attaches a vibration detection medium to the body surface of an animal, acquires the vibration generated by feeding of the animal, the movement of muscles associated with rumination, and the vibration generated by respiration or heartbeat, and obtains the behavior and physiological indicators of the animal. It discloses a method for automatic and continuous monitoring.

Japanese Unexamined Patent Publication No. 2002-125953 (published on May 8, 2002) Japanese Unexamined Patent Publication No. 2013-2201 (published on February 4, 2013)

However, the above-mentioned conventional technique has a problem that it is difficult to continue to measure biological information in a stable manner when the measurement target moves or changes its posture.

For example, when measuring a dog's heart rate and respiratory rate using a single pressure sensor, the respiratory rate increases when the dog moves violently or becomes excited, making it indistinguishable from the heart rate. It is known to occur. In addition, in the method of separating the signal indicating the respiratory rate and the signal indicating the heart rate from the sensor signal from one pressure sensor, an accurate numerical value is measured when the respiratory rate and the heart rate of the dog are close to each other. Is difficult. Further, when the direction and position of the heart change depending on the posture like a dog, it is not possible to continuously measure the heartbeat by using one fixed pressure sensor.

The present invention has been made in view of the above problems, and an object of the present invention is to continuously measure biological information using an appropriate sensor even if the living body is moving freely. The purpose is to realize a measuring device.

In order to solve the above problems, the biological information measuring device according to one aspect of the present invention is attached to a living body and outputs from a plurality of sensors for detecting pressure related to the biological information of the living body and the plurality of sensors. For each sensor signal to be generated, a sensor signal determination unit that determines whether or not the pressure fluctuation satisfies a predetermined condition and a sensor signal that is determined by the sensor signal determination unit to satisfy the predetermined condition are output. A sensor identification unit that identifies one or a plurality of sensors is provided, and a sensor signal output from the sensor specified by the sensor identification unit is output as a pressure fluctuation related to the biological information of the living body. To do.

Further, the control method of the biological information measuring device according to one aspect of the present invention is a control method of the biological information measuring device which is attached to the living body and includes a plurality of sensors for detecting the pressure related to the biological information of the living body. When the sensor signal determination step of determining whether or not the pressure fluctuation satisfies the predetermined condition for each sensor signal output from the plurality of sensors and the sensor signal determination step satisfying the predetermined condition. The sensor identification step for identifying one or more sensors from the sensors that output the determined sensor signal and the sensor signal output from the sensor identified in the sensor identification step are related to the biological information of the living body. Includes output steps, and output as pressure fluctuations.

According to one aspect of the present invention, even if the living body is moving freely, it is possible to continuously measure the biological information by using an appropriate sensor.

It is a block diagram which shows an example of the schematic structure of the biological information measuring apparatus which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the structure of the sensor array in which a plurality of pressure sensors are arranged. It is a figure which shows the specific example of the position of the sensor which can measure a heartbeat, and the sensor which specified as a sensor which can measure a respiration in a sensor array. (A) is a diagram showing a state of pressure change detected by a pressure sensor capable of measuring heartbeat, and (b) is a diagram showing a state of pressure change detected by a pressure sensor capable of measuring respiration. It is a flowchart which shows an example of the flow of a sensor identification process performed by a biological information measuring apparatus. It is a block diagram which shows an example of the schematic structure of the biological information measuring apparatus which concerns on Embodiment 2 of this invention. It is a flowchart which shows an example of the flow of the process of re-identifying a sensor based on the detection of the body movement of a dog by a biological information measuring device. It is a block diagram which shows an example of the schematic structure of the biological information measuring apparatus which concerns on Embodiment 3 of this invention. It is a flowchart which shows an example of the flow of the process of re-identifying a sensor based on the biological information calculated by the biological information measuring apparatus. It is a block diagram which shows an example of the schematic structure of the biological information measuring apparatus which concerns on Embodiment 4 of this invention. It is a flowchart which shows an example of the process flow which a biometric information measuring apparatus notifies the suitability of the attachment state of a sensor array. It is a figure which shows the configuration example of the biological information management system which manages the health condition of a dog by attaching a sensor array to a dog.

Hereinafter, embodiments of the present invention will be described in detail.

Here, the biological information measuring device according to the present invention is attached to the dog 9 (living body), and the biological information capable of measuring the heartbeat (first biological information) and respiration (second biological information) of the dog. An example is given when the device is applied to the measuring device 1. The biological information measuring device according to the present invention includes pet animals (pets) (living bodies) such as dogs 9, cats and rabbits, livestock (living bodies) such as cows, horses and pigs, and lions bred in zoos and the like. It is applicable to animals such as elephants and monkeys, and humans (living bodies), and is not limited to dogs.

Further, in the following, as a plurality of sensors of the biological information measuring device 1, a sensor array in which pressure sensors (for example, piezoelectric sensors) capable of simultaneously detecting pressure fluctuations (pressure) related to the heartbeat and respiration of the dog 9 are arranged. An example of using 30 (a plurality of sensors) will be described. By using the sensor array 30 in which a plurality of pressure sensors are arranged, the plurality of pressure sensors can be easily attached to the dog 9. The specific configuration of the sensor array 30 will be described later.

An appropriate fitting 8 can be used to mount the sensor array 30 at a predetermined position (chest or abdomen) on the body surface of the dog 9. The fitting 8 has the shape of a harness, clothes, a belt, or the like, as long as it has a function of preventing the position of the sensor array 30 from changing significantly or coming off due to the movement of the dog. You may.

[Embodiment 1]
The biological information measuring device 1 according to the embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

(Structure of biological information measuring device 1)
First, the configuration of the biological information measuring device 1 will be described with reference to FIG. FIG. 1 is a block diagram showing an example of a schematic configuration of the biological information measuring device 1 according to the first embodiment of the present invention.

The biological information measuring device 1 includes a signal analysis unit 10, a sensor signal acquisition unit 20, a sensor array 30, and a scan timing control unit 40 (timing control unit). The signal analysis unit 10 includes a sensor signal analysis unit 11, a sensor signal determination unit 12, and a sensor identification unit 13. The sensor signal acquisition unit 20 includes a sensor scan unit 21 and a sensor signal processing unit 22.

The sensor array 30 includes a plurality of pressure sensors (each black dot in FIG. 1 indicates a respective pressure sensor). The shape of the sensor array 30 may be, for example, a rectangular shape, and in some cases, 10 pressure sensors in the horizontal direction (L direction in the figure) and 16 pressure sensors in the vertical direction (V direction in the figure) are used. They are arranged at 1.27 cm intervals. The illustrated sensor array 30 includes 160 pressure sensors, and the coordinates (addresses) of L1V1 to L10V16 are associated with each pressure sensor.

The size of the sensor array 30 may be such that a part of the chest and a part of the abdomen of the dog 9 are covered, and is preferably a size that does not interfere with the movement of the dog 9. .. Further, the size of the sensor array 30 may be changed according to the breed of dog (that is, the size of the body). For example, the size of the sensor array 30 may be changed by fixing all the intervals of each pressure sensor. In this case, the number of pressure sensors included in the sensor array 30 is increased or decreased by changing the size of the sensor array 30. Alternatively, the size of the sensor array 30 may be changed by narrowing or widening all the intervals of each pressure sensor. In this case, even if the size of the sensor array 30 is changed, the number of pressure sensors included in the sensor array 30 does not increase or decrease. This makes it possible to apply the sensor array 30 to various breeds of dogs. That is, when the size of the sensor array 30 is changed, both a configuration in which the number of pressure sensors included in the sensor array 30 fluctuates and a configuration in which the number of pressure sensors included in the sensor array 30 does not fluctuate can be considered. However, when the heartbeat and respiration of the dog 9 are measured at the same time, it is necessary for the sensor array 30 to come into contact with a region where the pressure fluctuation related to the heartbeat and the pressure fluctuation related to the respiration can be detected.

It is desirable that the distance between the pressure sensors included in the sensor array 30 is 1 to 10 cm. However, if the distance between the pressure sensors is narrowed (the pressure sensors of the sensor array 30 are densely configured), the number of pressure sensors in the sensor array 30 increases, the weight of the sensor array 30 increases, and the power consumption also increases. .. On the contrary, if the distance between the pressure sensors is widened (the pressure sensors of the sensor array 30 are sparsely configured), the weight of the sensor array 30 can be reduced and the power consumption can be reduced. However, since the area of the body surface of the dog 9 that can generally detect the pressure change related to the heartbeat is narrow (see FIG. 3), if the distance between the pressure sensors is widened, the heartbeat may not be detected. Therefore, biometric information measurement capable of simultaneously measuring heartbeat and respiration by appropriately setting the size of the sensor array 30 and the density of the pressure sensor included in the sensor array 30 according to the body size of the dog 9. The device 1 can be configured.

The distance between the pressure sensors included in the sensor array 30 is not limited to a uniform configuration. For example, the pressure sensors arranged in the sensor array 30 in contact with the chest (near the heart) of the dog 9. On the other hand, the distance between the pressure sensors arranged in the portion of the sensor array 30 that abuts on the abdomen of the dog 9 may be widened. When the sensor array 30 is configured in this way, it is possible to reliably measure the heart rate and respiration while appropriately suppressing the increase in the number of pressure sensors.

The scan timing control unit 40 instructs the sensor scan unit 21 to scan the sensor signal of the pressure sensor included in the sensor array 30 at predetermined time intervals. The timing may be set according to the character and behavior of the dog 9 wearing the biological information measuring device 1. For example, in the case of a gentle temper dog 9, at a 10-minute interval (predetermined time interval), in the case of a behavioral dog 9, at a 2-minute interval (predetermined time interval), the pressure sensor included in the sensor array 30. You may instruct to scan the sensor signal.

The sensor scan unit 21 acquires and accumulates sensor signals output from all the pressure sensors included in the sensor array 30 for a certain period of time (for example, 5 seconds) in response to an instruction from the scan timing control unit 40. Further, the sensor scanning unit 21 includes a pressure sensor specified by the sensor specifying unit 13 described later as a pressure sensor capable of measuring heartbeat, and a pressure sensor specified by the sensor specifying unit 13 described later as a sensor capable of measuring breathing (specification). The sensor signal output from the pressure sensor) is acquired. The sensor scanning unit 21 acquires the sensor signal output from the pressure sensor at a predetermined cycle (for example, 10 times per second).

The sensor signal processing unit 22 includes a bandpass filter, and the sensor scanning unit 21 removes the offset of the sensor signal acquired from the pressure sensor and removes high frequency noise. Further, the sensor signal processing unit 22 may perform analog / digital (A / D) conversion, amplification by an amplifier, and the like. When the sensor scanning unit 21 can acquire a sensor signal having a signal / noise ratio (S / N ratio) of a predetermined reference value (for example, S / N = 100) or more from the pressure sensor, the sensor signal processing unit 21 22 may be configured excluding the bandpass filter, the amplifier, and the like. With this configuration, the power consumption of the biometric information measuring device 1 can be reduced, and the cost required for manufacturing the biometric information measuring device 1 can be reduced.

Further, the sensor signal processing unit 22 transmits the processed sensor signal to the signal analysis unit 10. The sensor signal processing unit 22 may be configured to transmit the processed sensor signal to an external device (for example, the biometric information management server 100 and the communication terminal 200 shown in FIG. 12). In such a case, the biometric information management server 100 and the communication terminal 200 may have the function of the signal analysis unit 10 of the biometric information measuring device 1. That is, the biometric information measuring device 1 provides a communication unit that transmits a sensor signal to an external device such as the biometric information management server 100 and the communication terminal 200, or receives information such as the address of the pressure sensor specified by the external device. You may also have more. In this case, the address of the pressure sensor received by the biological information measuring device 1 from the external device is sent to the sensor scanning unit 21, and the pressure fluctuation related to the biological information such as the heartbeat cycle and the breathing cycle of the dog 9 is detected. It is set as the address of the pressure sensor used to do this.

The sensor signal analysis unit 11 analyzes the sensor signal received from the sensor signal processing unit 22. For example, the sensor signal analysis unit 11 analyzes the sensor signal output from each pressure sensor by using Fourier transform or the like, so that the peak frequency and spectrum (power) of the pressure fluctuation indicated by the sensor signal output from the pressure sensor Calculate the spectrum) density (distribution) and create a list of them. The sensor signal analysis unit 11 may analyze the sensor signal by using the wavelet transform. Further, as a method of analyzing the sensor signal, a threshold value is detected for the received sensor signal, peaks included in the sensor signal are detected according to heartbeat, respiration, etc., and between the peaks. The beat cycle (frequency), the breathing cycle (frequency), and the like may be calculated from the interval.

The sensor signal determination unit 12 determines whether or not the pressure fluctuation satisfies a predetermined condition for each sensor signal output from each pressure sensor (plurality of sensors) of the sensor array 30. Specifically, the sensor signal determination unit 12 refers to the list of peak frequency and spectral (power spectrum) density (distribution) created by the sensor signal analysis unit 11, and the sensor signal output for each pressure sensor is obtained. , Determine whether or not a predetermined condition is satisfied. Here, the predetermined condition is a condition for measuring biological information, and specifically, whether or not the pressure sensor is capable of detecting a pressure change related to heartbeat, a pressure change related to respiration, and the like. This is a preset condition for determining whether or not. For example, the sensor signal determination unit 12 determines whether or not there is a pressure sensor that outputs a sensor signal having a peak frequency of 50 Hz or less (predetermined condition) and a spectral density greater than a predetermined threshold value (predetermined condition). To judge. Among the pressure sensors included in the sensor array 30, the pressure sensor satisfying such a condition may include a pressure sensor capable of detecting at least a pressure change related to breathing.

The sensor identification unit 13 is a pressure sensor (first sensor) capable of detecting a pressure change related to heartbeat from among pressure sensors determined by the sensor signal determination unit 12 that the output sensor signal satisfies a predetermined condition. And the address of the pressure sensor (second sensor) that can detect the pressure change related to breathing. The sensor signal output from the pressure sensor specified by the sensor specifying unit 13 is output as a pressure fluctuation related to biological information such as the heartbeat cycle and the breathing cycle of the dog 9. The sensor identification unit 13 uses a pressure sensor that detects a pressure within a preset range as a heartbeat cycle (first biological information) and a periodic pressure fluctuation, and a pressure capable of detecting a pressure change related to the heartbeat. A pressure sensor that is identified as a sensor (see "A" in FIG. 3) and detects pressure within a preset range as a respiratory cycle (second biological information) and periodic pressure fluctuations is associated with breathing. The pressure change is specified as a detectable pressure sensor (see “B” in FIG. 3).

The number of pressure sensors whose addresses are specified by the sensor identification unit 13 may be one or a plurality. The sensor identification unit 13 sets the address of the pressure sensor that acquires the sensor signal for the sensor scan unit 21. The addresses of all the pressure sensors included in the sensor array 30 may be set, or the addresses of a predetermined number of pressure sensors may be set. By limiting the number of pressure sensors that acquire sensor signals, it is possible to reduce power consumption as compared with the case where sensor signals from all the pressure sensors included in the sensor array 30 are constantly acquired.

(Configuration of sensor array 30)
Next, the configuration of the sensor array 30 will be described with reference to FIG. FIG. 2 is a diagram showing an example of a configuration of a sensor array 30 in which a plurality of pressure sensors are arranged. The sensor array 30 includes three sheets of sheets 31 to 33.

The sheet 32 is a stretchable sheet made of a conductive polymer material or the like, and has a property that the resistance value changes when pressure is applied. The sheet 32 is arranged so as to be sandwiched between the sheet 31 and the sheet 33, which will be described later.

The sheet 31 has electrodes 35 arranged parallel to the V direction. A material having high insulating properties is arranged between adjacent electrodes 35. On the other hand, the sheet 33 includes electrodes 36 arranged in parallel in the L direction (for example, a direction perpendicular to the V direction) different from the V direction. A material having high insulating properties is also arranged between the adjacent electrodes 36. Therefore, the electrodes in the plane of the sheet 31 and the plane of the sheet 33 are insulated.

A predetermined voltage is applied from the driver circuit 34 between the electrode 35 and the electrode 36. As shown in the figure, when the sheet 32 is sandwiched between the sheet 31 and the sheet 33, the electrode 35 and the electrode 36 cross over with the sheet 32 sandwiched. At the grade separation between the electrode 35 and the electrode 36, the value of the current flowing between the electrode 35 and the electrode 36 changes according to the magnitude of the pressure applied to the sheet 32 at each grade separation. For example, when the applied pressure fluctuates periodically, the value of the current flowing between the electrode 35 and the electrode 36 also fluctuates periodically. That is, as shown in FIG. 2, by crossing the electrode 35 and the electrode 36 three-dimensionally with the sheet 32 sandwiched between them, each three-dimensional crossing can function as a pressure (piezoelectric) sensor.

The sensor array 30 is not configured as a layered structure in which sheets 31 to 33 are superimposed as shown in FIG. 2, but may be configured by using a cloth woven with conductive fibers, or may be conductive. It may be configured by using sex rubber.

By using the sensor array 30, a plurality of pressure sensors can be easily attached to the dog 9. Therefore, it is possible to avoid the trouble of attaching the plurality of pressure sensors to the dog 9 and improve the convenience of the biological information measuring device 1. In order to attach the sensor array 30 to the dog 9, a fitting 8 such as a harness shape and a clothing shape may be used (see FIG. 12).

Instead of mounting the sensor array 30 on the dog 9, the sensor array 30 may be arranged on a part or the whole of a mat, a carpet, a board, etc. on which the chest and abdomen of the dog 9 abut. For example, by arranging the sensor array 30 on a carpet laid in a place where the dog 9 crawls or lays down, the chest of the dog 9 is placed on the carpet when the dog 9 crawls on the carpet. And the abdomen etc. come into contact. The pressure sensor at the position where the chest and abdomen of the dog 9 are in contact with each other can detect the pressure fluctuation related to the heartbeat of the dog 9 and the pressure fluctuation related to respiration. However, when the dog 9 moves freely, it is difficult to measure the heartbeat and respiration for a long time because the chest and abdomen of the dog 9 cannot be maintained in contact with the sensor array 30. Therefore, when measuring heart rate and respiration for a long time, it is desirable to attach the sensor array 30 to the dog 9.

When the sensor array 30 is applied to a human being, the heartbeat and respiration may be measured by wearing clothes and orthoses on which the sensor array 30 is arranged. Alternatively, the heart rate and respiration may be measured while lying on a bed or the like on which the sensor array 30 is arranged.

(Detection of pressure fluctuation related to heartbeat / respiration by sensor array 30)
Subsequently, the detection of pressure fluctuations related to heartbeat and respiration by the sensor array 30 will be described with reference to FIGS. 3 and 4 with reference to specific examples. FIG. 3 is a diagram showing a specific example of the positions of a sensor capable of measuring heartbeat and a sensor identified as a sensor capable of measuring respiration in the sensor array 30.

In FIG. 3, the squares in which 10 in the L direction and 16 in the V direction are arranged schematically show each pressure sensor of the sensor array 30. That is, each of the squares such as L1V1 and L2V1 in the figure corresponds to each pressure sensor configured by forming a grade separation between the electrode 35 and the electrode 36 with the sheet 32 sandwiched between them.

Then, FIG. 3 shows a distribution example of a pressure sensor capable of measuring heartbeat and a pressure sensor capable of measuring breathing in a sensor array 30 attached to an actual dog 9 (a 2-year-old female beagle dog). The pressure sensor identified by the sensor identification unit 13 as a pressure sensor capable of detecting a pressure change related to heartbeat is designated as "A", while the pressure sensor capable of detecting a pressure change related to breathing is designated as "B". Represents. The pressure sensors corresponding to the addresses of L2V11 to L2V14 and L3V11 to L3V12 are pressure sensors capable of detecting pressure changes related to heartbeat, and many pressure sensors such as L2V9, L2V10, L3V9, and L3V10 are related to breathing. It is a pressure sensor that can detect pressure changes. In addition, it indicates that the periodic sensor signals peculiar to heartbeat and respiration could not be obtained from the pressure sensor corresponding to the empty square in which the letters such as "A" and "B" were not entered. There is.

As described above, the pressure sensor capable of outputting the sensor signal having a high correlation with the heartbeat and the pressure sensor capable of outputting the sensor signal having a high correlation with the respiration are different from each other. Then, in general, the distribution of the pressure sensor specified as the pressure sensor capable of outputting the sensor signal having a high correlation with the heartbeat is limited to a narrow region. The sensor identification unit 13 identifies the pressure sensor used for measuring the heartbeat from the pressure sensors in which "A" is entered in FIG. 3, while the pressure sensor used for measuring the respiration is shown in FIG. Specify from the pressure sensors in which "B" is entered.

For example, the pressure sensor used for measuring heartbeat and respiration can be specified by the following steps (1) to (3). (1) The sensor signal analysis unit 11 calculates the peak frequency and power spectral density of the pressure fluctuation indicated by the sensor signal from the pressure sensor. (2) The sensor signal determination unit 12 determines which pressure sensor has a peak value of the calculated power spectral density peak larger than a predetermined value and a half width of the peak narrower than the predetermined width. .. (3) The sensor identification unit 13 specifies the address of the pressure sensor used for measuring the heartbeat and respiration based on the determination result in (2) above.

In the above (1), when the sensor signal analysis unit 11 detects the threshold value for the received sensor signal, the amplitude of the sensor signal may be calculated. In this case, the sensor signal determination unit 12 determines in (2) above which pressure sensor is outputting a sensor signal having an amplitude larger than a predetermined amplitude. Then, (3) the sensor identification unit 13 specifies the address of the pressure sensor used for measuring the heartbeat and respiration of the pressure sensor that outputs the sensor signal having the largest amplitude.

FIG. 4 shows a graph showing the periodic pressure fluctuation based on the sensor signal acquired from the pressure sensor identified in this way. FIG. 4A is a diagram showing a state of pressure change detected by a pressure sensor capable of measuring heartbeat, and FIG. 4B is a state of pressure change detected by a pressure sensor capable of measuring breathing. It is a figure which shows.

In the example shown in FIG. 4 (a), the pressure fluctuation (about 1 Hz) is measured about 60 times per minute, and in the example shown in FIG. 4 (b), the pressure fluctuation is about 18 times per minute. (Approximately 0.3 Hz) has been measured. The pressure fluctuations measured in (a) and (b) of FIG. 4 are heartbeat frequencies measured by other measurement methods (for example, heartbeat measurement is an electrocardiograph and respiration is a visual measurement). And it was confirmed that it matched the frequency of respiration.

In the case of dog 9, the movement of the position of the heart due to the change in posture is larger than that in human. Since the biological information measuring device 1 periodically repeats a process for identifying a pressure sensor capable of measuring heartbeat and a pressure sensor capable of measuring breathing (for example, once every 10 minutes), it is related to heartbeat. Even if the pressure sensor that can detect the pressure change changes, the specific process of the pressure sensor can be redone and the heartbeat and breath can be continuously measured using the appropriate pressure sensor.

When separating the signal indicating the pressure fluctuation related to heartbeat and the signal indicating the pressure fluctuation related to breathing from the sensor signal output from the same pressure sensor, it is necessary to separate from the signal in which both signals are mixed. (For example, signal separation processing using a filter) is required. However, in the case of the dog 9, since the heartbeat cycle and the respiration cycle can be numerical values closer to the state change, there is a possibility that the signal separation process using the filter cannot be effectively performed.

Generally, when one pressure sensor is attached to a dog 9 and the sensor signal output from the pressure sensor contains a mixture of pressure fluctuations related to heartbeat and pressure fluctuations related to breathing, the heartbeat is affected. It is difficult to separate the associated pressure fluctuations by filtering. This is because when comparing the magnitude of body movement due to breathing and the magnitude of body movement due to heartbeat, the magnitude of body movement due to breathing is larger than the magnitude of body movement due to heartbeat. This is because the N ratio is likely to decrease due to the filtering process.

The biological information measuring device 1 identifies a pressure sensor capable of measuring heartbeat and a pressure sensor capable of measuring breathing from a plurality of pressure sensors included in the sensor array 30, and outputs the pressure sensor from each pressure sensor. By acquiring the sensor signal, it is possible to measure the heartbeat and the respiration at the same time without performing the separation by the filtering process which lowers the S / N ratio.

(Process to identify the pressure sensor)
Subsequently, the process of identifying the pressure sensor capable of measuring the heartbeat and the respiration from the pressure sensors included in the sensor array 30 by the biological information measuring device 1 will be described with reference to FIG. FIG. 5 is a flowchart showing an example of the flow of the sensor identification process performed by the biological information measuring device 1.

The sensor scan unit 21 scans the sensor signals from each pressure sensor according to the instruction from the scan timing control unit 40, and acquires and accumulates the sensor signals for a certain period of time (for example, 5 seconds) (S1). For example, the scan timing control unit 40 instructs the sensor scan unit 21 to scan the sensor signals from each pressure sensor when the main power of the biometric information measuring device 1 is turned on and every 10 minutes thereafter. May be good.

The sensor signal acquired by the sensor scan unit 21 is subjected to bandpass filter processing, noise removal processing, and the like in the sensor signal processing unit 22, and then transmitted to the sensor signal analysis unit 11.

The sensor signal analysis unit 11 analyzes the sensor signals from each pressure sensor received from the sensor signal processing unit 22 and calculates the peak frequency, spectral density, and the like (S2).

Next, the sensor signal determination unit 12 refers to the peak frequency calculated by the sensor signal analysis unit 11 and the spectral density, and whether or not there is a pressure sensor that outputs a sensor signal having a peak at 50 Hz or less. (S3, sensor signal determination step). When the dog 9 is excited and moving violently, the respiratory cycle and the heartbeat cycle may approach each other. Therefore, it is desirable that this determination be made when the dog 9 is calm.

When there is no pressure sensor satisfying the above conditions (NO in S3), the sensor scanning unit 21 waits until the sensor signal from each pressure sensor is scanned. That is, when the peak of 50 Hz or less can be detected, the dog 9 is in a relatively calm state, and when the dog is not calm, it waits until it can be detected. By waiting for the dog to be in a calm state, it is possible to identify a pressure sensor capable of reliably measuring heartbeat and respiration from among the plurality of pressure sensors of the sensor array 30. On the other hand, when there is a pressure sensor that satisfies the above conditions (YES in S3), the pressure sensor that detects the (based) pressure change related to heartbeat and the (based) pressure change related to breathing are detected. The address of the pressure sensor being detected is specified (S4, sensor identification step).

The sensor scanning unit 21 starts acquiring / accumulating the sensor signal output from the pressure sensor corresponding to the address specified by the sensor specifying unit 13 (S5). The sensor signal processing unit 22 performs bandpass filter processing and noise removal processing of the acquired sensor signal, and communicates the processed sensor signal with, for example, an external device (for example, the biometric information management server 100 shown in FIG. 12). Send to (terminal 200, etc.) (output step).

Since the biological information measuring device 1 periodically repeats the process for identifying the pressure sensor capable of measuring the heartbeat and the pressure sensor capable of measuring the respiration, the pressure sensor capable of detecting the pressure change related to the heartbeat changes. Nevertheless, the pressure sensor identification process can be redone to continue measuring heart rate and breathing with the appropriate pressure sensor. In addition, the biological information measuring device 1 does not acquire and accumulate sensor signals from all the pressure sensors included in the sensor array 30 in order to continuously measure heartbeat and respiration, but corresponds to a specified address. Only the sensor signal from the pressure sensor is acquired. Therefore, it is possible to reduce the amount of power consumption required for measuring biological information such as the heartbeat cycle and the respiration cycle.

[Embodiment 2]
Other embodiments of the present invention will be described below with reference to FIGS. 6 to 7. For convenience of explanation, the same reference numerals will be added to the members having the same functions as the members described in the above-described embodiment, and the description thereof will be omitted.

(Structure of biological information measuring device 1a)
FIG. 6 is a block diagram showing an example of a schematic configuration of the biological information measuring device 1a according to the second embodiment of the present invention. The illustrated biological information measuring device 1a is different from the biological information measuring device 1 of FIG. 1 in that it further includes a body motion detecting unit 41 and a body motion analysis unit 42. That is, the biological information measuring device 1 was configured to periodically repeat a process for identifying a pressure sensor capable of measuring heartbeat and a pressure sensor capable of measuring breathing, whereas the biological information measuring device 1a is a dog. Even when 9 performs a body movement with an acceleration of a magnitude exceeding a predetermined threshold, the process for identifying the pressure sensor capable of measuring heartbeat and the pressure sensor capable of measuring breathing is repeated.

The body motion detection unit 41 is a sensor that detects the body motion (movement) of the dog 9, and may be, for example, an acceleration sensor. The body motion detection unit 41 is attached to the dog 9 like the sensor array 30 (it can be installed in various processing circuits 7 and the like in FIG. 12), detects the body motion of the dog 9, and analyzes the detection signal. It is transmitted to the unit 42.

The body movement analysis unit 42 outputs a signal instructing the sensor scanning unit 21 to scan the sensor array 30 when the magnitude of the body movement of the dog 9 exceeds a predetermined threshold value. When the body motion detection unit 41 is an acceleration sensor, the predetermined threshold value of the body motion magnitude of the dog 9 may be set, for example, the output fluctuation from the 0 point is ± 2G. Here, 1G is the gravitational acceleration.

The predetermined threshold value may be set low (for example, ± 1 G) or high (for example, ± 1 G) depending on the behavior and temperament of the dog 9 and the degree of fixation of the sensor array 30 fixed by the wearer 8. , ± 3G) may be set.

When the dog 9 is excited and moving violently, the respiratory cycle and the heartbeat cycle may approach each other. On the other hand, when the body movement of the dog 9 is small, that is, when the dog 9 is in a resting state, the heartbeat cycle and the respiration cycle are sufficiently separated from each other. Therefore, it is desirable that the process of identifying the pressure sensor be performed when the dog 9 is calm. Therefore, when the body motion detection unit 41 detects that the dog 9 is in a resting state, a pressure sensor capable of measuring respiration and a pressure sensor capable of measuring heartbeat may be specified.

(Processing to detect the body movement of dog 9 and redo the identification of the pressure sensor)
The flow of the process in which the biological information measuring device 1a detects the body movement of the dog 9 and re-identifies the pressure sensor will be described with reference to FIG. 7. FIG. 7 is a flowchart showing an example of a flow of processing in which the sensor identification is redone based on the detection of the body movement of the dog 9 by the biological information measuring device 1a.

When the body movement detection unit 41 detects the body movement (S11), the body movement analysis unit 42 determines whether or not the detected body movement has a magnitude exceeding a predetermined threshold value (S12). When the detected body movement is a body movement of a magnitude exceeding a predetermined threshold value (YES in S12), the sensor scanning unit 21 identifies the pressure sensor according to the instruction from the body movement analysis unit 42 (FIG. 5). The sensor identification process shown in (S13) is repeated (S13, sensor identification step).

The position of the attached sensor array 30 may shift due to the body movement of the dog 9. In addition, the position of the heart of the dog 9 may change as the dog 9 changes its posture. Therefore, the body movement of the dog 9 is detected, and if the body movement exceeds a predetermined threshold value, a pressure sensor capable of measuring heartbeat and a pressure sensor capable of measuring respiration are specified. It is desirable to redo the processing for this. Therefore, the biological information measuring device 1a reidentifies the pressure sensor at the timing when the body movement of the dog 9 is detected. As a result, the measurement of heartbeat and respiration can be stably continued while allowing the dog 9 to move freely.

[Embodiment 3]
Other embodiments of the present invention will be described below with reference to FIGS. 8 to 9. For convenience of explanation, the same reference numerals will be added to the members having the same functions as the members described in the above-described embodiment, and the description thereof will be omitted.

(Structure of biological information measuring device 1b)
FIG. 8 is a block diagram showing an example of a schematic configuration of the biological information measuring device 1b according to the third embodiment of the present invention. The illustrated biometric information measuring device 1b is different from the biometric information measuring device 1 of FIG. 1 in that it further includes a biometric information calculation unit 43 and a sensor state evaluation unit 44. That is, the biometric information measuring device 1 has a configuration in which a process for identifying a pressure sensor capable of measuring heartbeat and a pressure sensor capable of measuring breathing is periodically repeated, but the biometric information measuring device 1b is a sensor. Identification of the pressure sensor even when the heartbeat cycle and breathing cycle of the dog 9 deviate from a predetermined allowable range, which is calculated based on the sensor signal from the specific pressure sensor transmitted from the signal processing unit 22. It is a configuration to redo. That is, the biological information measuring device 1b constantly monitors the actually measured heart rate and respiratory rate, and when these measurement results become abnormal values, the pressure sensor is specified again.

The biological information calculation unit 43 receives a sensor signal from a pressure sensor specified as a pressure sensor capable of measuring heartbeat and a sensor signal from a pressure sensor specified as a pressure sensor capable of measuring breathing from the sensor signal processing unit 22. Obtain and calculate the heartbeat cycle and the breathing cycle. The heartbeat cycle and respiration cycle may be calculated by Fourier transforming the power spectral density. Alternatively, a peak with a peak value larger than a predetermined value may be detected, and the heartbeat cycle and the respiratory cycle may be calculated based on the cycle in which the peak is detected.

The sensor state evaluation unit 44 scans the sensor array 30 with respect to the sensor scan unit 21 when the heartbeat cycle and the respiration cycle calculated by the biological information calculation unit 43 deviate from a predetermined allowable range. Outputs a signal instructing. Here, the predetermined permissible range may be set, for example, as a breathing cycle of 10 times / minute or more and 200 times / minute or less, and a heartbeat cycle of 60 times / minute or more and 200 times / minute or less. The setting of this predetermined allowable range may be appropriately changed according to the state of the dog 9. For example, it is generally said that the breathing cycle of dog 9 is 20 to 30 times / minute for small dogs and 15 times / minute for large dogs.

(Processing to monitor the calculated biological information and redo the identification of the pressure sensor)
The flow of the process in which the biological information measuring device 1b reidentifies the pressure sensor based on the calculated biological information such as the heartbeat cycle and the respiratory cycle will be described with reference to FIG. FIG. 9 is a flowchart showing an example of a flow of processing in which the biometric information measuring device 1b redoes the sensor identification based on the biometric information calculated by the biometric information measuring device 1b.

The biological information calculation unit 43 acquires a sensor signal from the biological information calculation unit 43 and calculates biological information such as a heartbeat cycle and a respiratory cycle (S21). When the calculated biometric information deviates from the predetermined allowable range (NO in S22), the sensor scanning unit 21 identifies the pressure sensor (sensor identification process shown in FIG. 5) according to the instruction from the biometric information calculation unit 43. ) Is redone (S23, sensor identification step).

In this way, the biometric information measuring device 1b constantly monitors the measured biometric information, and when an abnormal value deviating from a predetermined permissible range is measured, a pressure sensor capable of measuring the heartbeat and breathing. It is a configuration to redo the identification of the pressure sensor that can measure. As a result, even if the position of the heart of the dog 9 changes for some reason, correct heartbeat and respiration measurements can be stably continued.

[Embodiment 4]
Other embodiments of the present invention will be described below with reference to FIGS. 10 to 11. For convenience of explanation, the same reference numerals will be added to the members having the same functions as the members described in the above-described embodiment, and the description thereof will be omitted.

(Structure of biological information measuring device 1c)
FIG. 10 is a block diagram showing an example of a schematic configuration of the biological information measuring device 1c according to the fourth embodiment of the present invention. The illustrated biometric information measuring device 1c is different from the biometric information measuring device 1 of FIG. 1 in that it further includes a display unit 45. That is, the biological information measuring device 1c is a display for notifying the user whether or not the sensor array 30 is properly attached when the user such as the owner of the dog 9 attaches the sensor array 30 to the dog 9. The part 45 is provided.

The display unit 45 is attached to the dog 9 like the sensor array 30 (may be installed in various processing circuits 7 and the like in FIG. 12), may be one that lights an LED lamp, or is displayed on a liquid crystal screen. It may display characters and the like. The display unit 45 may be the display unit of the user's communication terminal 200. In this case, information indicating whether or not the sensor array 30 is properly mounted is transmitted to the user's communication terminal 200 by using the wireless communication circuit included in the various processing circuits 7 (transmission device). Just do it.

(Process to notify the suitability of mounting the sensor array 30)
The flow of the process in which the biological information measuring device 1c informs the user whether or not the sensor array 30 is properly attached to the dog 9 will be described with reference to FIG. FIG. 11 is a flowchart showing an example of a processing flow in which the biological information measuring device 1c notifies the suitability of the mounting state of the sensor array 30.

When the sensor array 30 is attached to the dog 9 and the power of the biological information measuring device 1c is turned on (S31), the biological information measuring device 1c executes the sensor identification process as shown in FIG. 5 (S32). When the pressure sensor cannot be specified (NO in S33), an instruction prompting the user to reattach the sensor array 30 is displayed on the display unit 45 (S35). On the other hand, when the identification of the pressure sensor is completed (YES in S33), that fact is displayed on the display unit 45.

As a result, when the sensor array 30 is attached to the dog, it is possible to inform the user whether or not the sensor array 30 is correctly attached. Therefore, heart rate and respiration measurements can be started steadily.

[Embodiment 5]
(Biological information management system 300)
Next, the biological information management system 300 to which the biological information measuring device 1 is applied will be described with reference to FIG. The biological information measuring devices 1a to 1c may be applied to the biological information management system 300. FIG. 12 is a diagram showing a configuration example of a biological information management system 300 in which a sensor array 30 is attached to a dog 9 to manage the health condition of the dog 9. The illustrated biometric information management system 300 is a biometric information management server that manages the measured heart rate (biological information) and heartbeat cycle (biological information) of the dog 9 and the respiratory rate (biological information) and respiratory cycle (biological information). It is a configuration managed by 100.

The biometric information management system 300 includes a biometric information measuring device 1, a biometric information management server 100, and a communication terminal 200 attached to the dog 9, and these are connected to each other so as to be able to communicate with each other via a communication network 150. Here, the communication terminal 200 may be a mobile device such as a mobile phone, a smartphone, or a tablet, or may be a personal computer (PC). The communication terminal 200 may be a communication terminal 200 owned by the owner of the dog 9, or may be a communication terminal 200 owned by a doctor at a veterinary hospital or the like.

The dog 9 shown in the figure is equipped with a clothing-like fitting 8. A sensor array 30 is arranged at a position of the attachment 8 in contact with the chest of the dog 9, while various processing circuits 7 are arranged at a position of the attachment 8 corresponding to the back side of the dog 9. .. The various processing circuits 7 may include a battery (secondary battery or the like), a wireless communication circuit (communication device, etc.), and the like. Further, the various processing circuits may include, for example, a driver circuit 34 that applies a predetermined voltage to the sensor array 30, a sensor signal acquisition unit 20, and the like. That is, the wearing tool 8 can realize the biological information measuring device 1 as a wearable device having a clothes-like shape to be worn on a dog.

Here, in order to simultaneously measure the pressure change related to the heartbeat and respiration of the dog 9, the sensor array 30 is arranged at a position where it abuts on the chest of the dog 9. For example, when measuring related pressure changes such as pulse wave (biological information) and heartbeat, the sensor array 30 may be arranged at a position such as the axilla and limb of the dog 9 in contact with the skin close to the blood vessel. Further, when measuring the contraction cycle (biological information) of muscles or the like, the sensor array 30 may be arranged at a position where it abuts on the back muscles or the thighs or the like.

Alternatively, the sensor array 30 is attached to the dog 9 so as not to restrict the body movement, and the posture and behavior of the dog 9 (standing, sitting, sleeping, feeding, and tailing) are performed. (Shaking, etc.) may be detected. That is, the biological information measuring device 1 can detect the health condition and habitual behavior of the dog 9.

The sensor array 30 abuts from the chest to the abdomen of the dog 9. The chest to abdomen of the dog 9 moves periodically in response to the heartbeat of the dog 9 and the lung movement associated with inspiration and exhaust in breathing. Therefore, among the plurality of pressure sensors included in the sensor array 30 that abuts from the chest to the abdomen of the dog 9, some pressure sensors detect pressure fluctuations related to the dog 9's heartbeat, and some pressure sensors. Can detect pressure fluctuations associated with the breathing of dog 9.

As shown in the figure, the biometric information measured by the biometric information measuring device 1 may be transmitted to the biometric information management server 100 and the communication terminal 200 owned by the owner by wireless communication (via the communication network 150). .. Further, when the biometric information measuring device 1 measures the posture and habitual behavior of the dog 9, it may be transmitted to the biometric information management server 100 and the communication terminal 200 owned by the owner via the communication network 150. This makes it possible to inform the owner of the dog 9 at a distance from the dog 9 about the health condition and behavior of the dog 9.

The signal analysis unit 10 of the biometric information measuring device 1 may be arranged on the biometric information management server 100, the communication terminal 200, or the like. In this case, the biometric information management server 100 and the communication terminal 200 may receive the received sensor signal and store it together with the time when the sensor signal is output (or the time when the sensor signal is received).

The biological information measuring device 1 attached to the dog 9 and the communication terminal 200 may be configured to directly communicate with each other. For example, the biometric information management server 100 may store and manage the results of measuring the biometric information of the dog 9, or the biometric information management server 100 and the plurality of communication terminals 200 can communicate with each other. You may. That is, instead of the biometric information management server, a storage unit (not shown) provided in the communication terminal 200 may be configured to store and manage the result of measuring the biometric information of the dog 9.

The biometric information management system 300 may include a plurality of biometric information measuring devices 1 and a plurality of communication terminals 200. The biological information management system 300 can measure the biological information of a plurality of dogs 9, store and manage the measured biological information for each dog 9, and distribute the biological information to the communication terminal 200.

[Example of realization by software]
The control blocks (particularly the sensor signal analysis unit 11, the sensor signal determination unit 12, and the sensor identification unit 13) of the biological information measuring devices 1, 1a, 1b, and 1c are logic circuits (especially, a logic circuit (IC chip)) formed in an integrated circuit (IC chip) or the like. It may be realized by hardware) or by software using a CPU (Central Processing Unit).

In the latter case, the biometric information measuring devices 1, 1a, 1b, and 1c are a CPU that executes a command of a program that is software that realizes each function, and the above program and various data are readablely recorded by a computer (or CPU). It is equipped with a ROM (Read Only Memory) or a storage device (these are referred to as "recording media"), a RAM (Random Access Memory) for developing the above program, and the like. Then, the object of the present invention is achieved by the computer (or CPU) reading the program from the recording medium and executing the program. As the recording medium, a "non-temporary tangible medium", for example, a tape, a disk, a card, a semiconductor memory, a programmable logic circuit, or the like can be used. Further, the program may be supplied to the computer via any transmission medium (communication network, broadcast wave, etc.) capable of transmitting the program. The present invention can also be realized in the form of a data signal embedded in a carrier wave, in which the above program is embodied by electronic transmission.

[Summary]
The biological information measuring devices 1, 1a to 1c according to the first aspect of the present invention are attached to a living body (dog 9) and have a plurality of sensors (sensor array 30) for detecting pressure related to the biological information of the living body, and the above. For each sensor signal output from a plurality of sensors, the sensor signal determination unit 12 that determines whether or not the pressure fluctuation satisfies a predetermined condition, and the sensor signal determination unit determine that the predetermined condition is satisfied. A sensor identification unit 13 that identifies one or a plurality of sensors from the sensors that output the sensor signal is provided, and the sensor signal output from the sensor specified by the sensor identification unit can be used as the biological information of the living body. It is output as the pressure fluctuation related to.

According to the above configuration, among a plurality of sensors that are attached to a living body and detect pressure related to the biological information of the living body, a sensor that outputs a sensor signal in which the fluctuation of the pressure satisfies a predetermined condition is specified. , The sensor signal from the specified sensor is output as a pressure fluctuation related to the biological information of the living body. As a result, among the plurality of sensors, the sensor that detects the pressure fluctuation related to the biological information of the living body is specified, and the sensor signal output from the specified sensor is related to the biological information of the living body. It can be output as a signal indicating the state. Therefore, even when the sensor capable of detecting the pressure change related to the biological information changes due to the posture and body movement of the living body, it is possible to identify an appropriate sensor and measure the biological information.

Further, the biometric information measuring device does not output the sensor signals from all the sensors but outputs only the sensor signals from a specific sensor in order to continuously measure the biometric information. Therefore, the power consumption required for long-time measurement can be reduced.

In the biological information measuring device according to the second aspect of the present invention, in the first aspect, the sensor may be a sensor included in the sensor array 30 in which the plurality of sensors are arranged.

With this configuration, a plurality of sensors can be easily attached to the living body. Therefore, it is possible to improve the convenience of the biological information measuring device 1 by avoiding the trouble of attaching the plurality of sensors to the living body. In addition, in order to attach the sensor array to the living body, attachments such as a harness shape and a clothing shape may be used.

In the biological information measuring device according to the third aspect of the present invention, in the first or second aspect, the sensor specifying unit is a sensor that outputs a sensor signal determined by the sensor signal determining unit to satisfy the predetermined condition. Among them, one or a plurality of first sensors capable of detecting the pressure related to the first biological information of the living body, and one or a plurality of second sensors capable of detecting the pressure related to the second biological information of the living body. Identify and output the sensor signal output from the first sensor as the pressure fluctuation related to the first biometric information, and output the sensor signal output from the second sensor as the pressure related to the second biometric information. The configuration may be such that it is output as a fluctuation.

According to the above configuration, one or a plurality of first sensors capable of detecting the pressure related to the first biological information of the living body from the sensors that output the sensor signals determined to satisfy the above-mentioned predetermined conditions. And one or more second sensors capable of detecting the pressure associated with the second biometric information of the living body. As a result, the sensor used for measuring the first biometric information and the sensor used for measuring the second biometric information are separately identified from the plurality of sensors, and the sensor signal output from each sensor is acquired. Can be done. That is, the first biological information and the second biological information can be measured not by using the same sensor but by using different sensors. Therefore, the first biological information and the second biological information can be measured at the same time without lowering the S / N ratio.

The biological information measuring device according to the fourth aspect of the present invention further includes a body motion detecting unit 41 for detecting the body motion of the living body in any one of the above aspects 1 to 3, and the body motion detected by the body motion detecting unit. When the magnitude of the above exceeds a predetermined threshold value, the sensor signal determination unit determines for each sensor signal output from the plurality of sensors whether or not the fluctuation of the pressure satisfies the predetermined condition. Alternatively, the determination may be repeated, and the sensor identification unit may identify one or a plurality of sensors from the sensors that output the sensor signals determined to satisfy the above-mentioned predetermined conditions.

There is a possibility that the positions of the multiple sensors attached may shift due to the body movement of the living body. In addition, the position of the heart of the living body may change due to the change of the posture of the living body. Therefore, if the body movement of the living body is detected and the body movement exceeds a predetermined threshold, the sensor used for measuring the biological information is specified by using the detection of the body movement as a trigger. Or it is desirable to redo the sensor identification that has already been performed.

According to the above configuration, the biological information measuring device identifies the sensor or redoes the identification of the sensor when a body movement exceeding a predetermined threshold value is detected. As a result, the sensor can be re-identified at an appropriate timing while allowing the living body to move freely. Therefore, the measurement of biological information can be continued stably.

The biological information measuring device according to the fifth aspect of the present invention further includes a body motion detecting unit for detecting the body movement of the living body in any one of the first to third aspects, and the sensor specifying unit is the body motion detecting unit. When the magnitude of the body movement detected by the sensor is equal to or less than a predetermined threshold value, the sensor signal determination unit determines whether or not the fluctuation of the pressure satisfies the predetermined condition for each sensor signal output from the plurality of sensors. The sensor identification unit may identify one or a plurality of sensors from the sensors that output the sensor signal determined to satisfy the predetermined condition.

According to the above configuration, the biological information measuring device identifies the sensor when a body movement of a predetermined threshold value or less is detected. As a result, the sensor can be identified when the living body is in a resting state and an appropriate sensor can be reliably identified. Therefore, the measurement of biological information can be continued stably. In addition, even if the sensor has already been specified when the body movement exceeds a predetermined threshold value, it is appropriate to re-identify the sensor by using the detection of the body movement below the predetermined threshold value as a trigger. Sensors can be identified more reliably.

The biological information measuring device according to the sixth aspect of the present invention calculates the biological information based on the sensor signal output from the sensor specified by the sensor specifying unit in any one of the first to third aspects. When the biometric information calculated by the biometric information calculation unit is not within a predetermined permissible range allowed as the biometric information, the sensor signal determination unit is output from the plurality of sensors. For each sensor signal, the determination as to whether or not the fluctuation of the pressure satisfies the predetermined condition is redone, and the sensor identification unit is one of the sensors that output the sensor signal determined to satisfy the predetermined condition. Multiple sensors may be identified.

According to the above configuration, if the calculated biometric information is not within a predetermined permissible range, the sensor is specified. As a result, when the biological information of the living body is not measured normally, the sensor can be appropriately specified again. Therefore, the reliability of the measured biological information can be maintained.

In any one of the above aspects 1 to 6, the biological information measuring device according to the seventh aspect of the present invention has the above-mentioned sensor signal determination unit for each sensor signal output from the plurality of sensors at predetermined time intervals. A timing control unit (scan timing control unit 40) that controls the timing of determining whether or not a predetermined condition for measuring biological information is satisfied may be further provided.

By identifying the sensors at predetermined time intervals, it is possible to always measure biological information using an appropriate sensor.

The biometric information management system 300 according to the eighth aspect of the present invention includes the biometric information measuring devices 1, 1a to 1c according to any one of the above aspects 1 to 7, and sensors output from the plurality of sensors (sensor array 30). It is provided with a transmission device (various processing circuits 7) for transmitting a signal to an external device (biological information management server 100, communication terminal 200). According to the above configuration, the same effect as that of the above aspects 1 to 7 can be obtained.

The control method of the biological information measuring devices 1, 1a to 1c according to the ninth aspect of the present invention is a plurality of sensors (sensor array 30) that are attached to a living body (dog 9) and detect pressure related to the biological information of the living body. A sensor signal determination step (a sensor signal determination step for determining whether or not a predetermined condition for measuring the biological information is satisfied for each sensor signal output from the plurality of sensors. S3), and the sensor identification step (S4, S13, S23) for identifying one or more sensors from the sensors that output the sensor signal determined to satisfy the predetermined condition in the sensor signal determination step. It includes an output step of outputting a sensor signal output from the sensor specified in the sensor specifying step as a pressure related to the biological information of the living body. According to the above configuration, the same effect as that of the above aspect 1 is obtained.

The biometric information measuring device according to each aspect of the present invention may be realized by a computer. In this case, the biometric information measuring device is operated by operating the computer as each part (software element) included in the biometric information measuring device. A control program of a biometric information measuring device that realizes the above with a computer, and a computer-readable recording medium that records the control program are also included in the scope of the present invention.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims, and the embodiments obtained by appropriately combining the technical means disclosed in the different embodiments. Is also included in the technical scope of the present invention. Furthermore, new technical features can be formed by combining the technical means disclosed in each embodiment.

1, 1a to 1c Biological information measuring device 7 Various processing circuits (transmitting device)
9 dog (living body)
12 Sensor signal judgment unit 13 Sensor identification unit 30 Sensor array (multiple sensors)
40 Scan timing control unit (timing control unit)
41 Body motion detection unit 43 Biometric information calculation unit 100 Biological information management server (external device)
200 Communication terminal (external device)
300 Biometric information management system S3 Sensor signal determination step S4, S13, S23 Sensor identification step

Claims (11)

A plurality of sensors that come into contact with a living body and detect pressure related to the biological information of the living body,
For each sensor signal output from the plurality of sensors, a sensor signal determination unit that determines whether or not the pressure fluctuation satisfies a predetermined condition, and a sensor signal determination unit.
A sensor identification unit that identifies one or more sensors from the sensors that output sensor signals that are determined by the sensor signal determination unit to satisfy the predetermined conditions.
It is equipped with a body movement detection unit that detects the body movement of the living body.
The sensor signal output from the sensor specified by the sensor identification unit is output as a pressure fluctuation related to the biological information of the living body.
When the magnitude of the body movement detected by the body movement detection unit exceeds a predetermined threshold value,
The sensor signal determination unit determines whether or not the pressure fluctuation satisfies a predetermined condition for each sensor signal output from the plurality of sensors, or redoes the determination.
The sensor specifying unit is a biological information measuring device, characterized in that one or a plurality of sensors are specified from among the sensors that output sensor signals determined to satisfy the above-mentioned predetermined conditions. A plurality of sensors that come into contact with a living body and detect pressure related to the biological information of the living body,
For each sensor signal output from the plurality of sensors, a sensor signal determination unit that determines whether or not the pressure fluctuation satisfies a predetermined condition, and a sensor signal determination unit.
A sensor identification unit that identifies one or more sensors from the sensors that output sensor signals that are determined by the sensor signal determination unit to satisfy the predetermined conditions.
It is equipped with a body movement detection unit that detects the body movement of the living body.
The sensor signal output from the sensor specified by the sensor identification unit is output as a pressure fluctuation related to the biological information of the living body.
When the magnitude of the body movement detected by the body movement detection unit is equal to or less than a predetermined threshold value,
The sensor signal determination unit determines whether or not the pressure fluctuation satisfies a predetermined condition for each sensor signal output from the plurality of sensors, or redoes the determination.
The sensor specifying unit is a biological information measuring device, characterized in that one or a plurality of sensors are specified from among the sensors that output sensor signals determined to satisfy the above-mentioned predetermined conditions. A plurality of sensors that come into contact with a living body and detect pressure related to the biological information of the living body,
For each sensor signal output from the plurality of sensors, a sensor signal determination unit that determines whether or not the pressure fluctuation satisfies a predetermined condition, and a sensor signal determination unit.
A scan timing control unit that changes the time interval determined by the sensor signal determination unit for each of the sensor signals output from the plurality of sensors.
The sensor signal determination unit includes a sensor identification unit that identifies one or more sensors from the sensors that output sensor signals determined to satisfy the predetermined conditions.
The sensor of the sensor signal that a particular portion is output from the specified sensor, the biological information measuring device according to claim also be output from the pressure fluctuations associated with the biological information of the living body. The biometric information measuring device according to any one of claims 1 to 3, wherein the sensor is a sensor included in a sensor array formed by arranging the plurality of sensors. The sensor identification unit can detect pressure related to the first biological information of the living body from among the sensors that output the sensor signal determined by the sensor signal determining unit to satisfy the predetermined condition. The plurality of first sensors and one or a plurality of second sensors capable of detecting the pressure related to the second biometric information of the living body are specified, and the sensor signal output from the first sensor is used as the first biometric information. The sensor signal output from the second sensor is output as the pressure fluctuation related to the second biological information, and the sensor signal is output as the pressure fluctuation related to the second biological information according to any one of claims 1 to 4. The biometric information measuring device described. A biometric information calculation unit that calculates the biometric information based on the sensor signal output from the sensor specified by the sensor specific unit is further provided.
When the biometric information calculated by the biometric information calculation unit is not within a predetermined permissible range allowed as the biometric information, the sensor signal determination unit performs the above for each sensor signal output from the plurality of sensors. The determination of whether or not the pressure fluctuation satisfies the predetermined condition is redone, and the sensor identification unit identifies one or a plurality of sensors from the sensors that output the sensor signal determined to satisfy the predetermined condition. The biometric information measuring device according to any one of claims 1 to 5, wherein the biometric information measuring device is characterized. The biometric information measuring device according to any one of claims 1 to 6.
A biological information management system including a transmission device that transmits sensor signals output from the plurality of sensors to an external device. It is a control method of a biological information measuring device including a plurality of sensors that are in contact with a living body and detect a pressure related to the biological information of the living body.
For each sensor signal output from the plurality of sensors, a sensor signal determination step for determining whether or not the pressure fluctuation satisfies a predetermined condition, and a sensor signal determination step.
In the sensor signal determination step, a sensor identification step for identifying one or more sensors from the sensors that output sensor signals determined to satisfy the predetermined conditions, and a sensor identification step.
An output step that outputs a sensor signal output from the sensor specified in the sensor identification step as a pressure fluctuation related to the biological information of the living body, and an output step.
Including the body movement detection step for detecting the body movement of the living body,
Whether or not the pressure fluctuation satisfies the predetermined condition for each sensor signal output from the plurality of sensors when the magnitude of the body movement detected in the body motion detection step exceeds a predetermined threshold value. A biometric information measuring device comprising a step of identifying one or a plurality of sensors from among the sensors that output a sensor signal determined to satisfy the above-mentioned predetermined condition by making a determination or re-doing the determination. Control method. It is a control method of a biological information measuring device including a plurality of sensors that are in contact with a living body and detect a pressure related to the biological information of the living body.
For each sensor signal output from the plurality of sensors, a sensor signal determination step for determining whether or not the pressure fluctuation satisfies a predetermined condition, and a sensor signal determination step.
In the sensor signal determination step, a sensor identification step for identifying one or more sensors from the sensors that output sensor signals determined to satisfy the predetermined conditions, and a sensor identification step.
An output step that outputs a sensor signal output from the sensor specified in the sensor identification step as a pressure fluctuation related to the biological information of the living body, and an output step.
Including the body movement detection step for detecting the body movement of the living body,
When the magnitude of the body movement detected in the above body movement detection step is equal to or less than a predetermined threshold value,
For each sensor signal output from the plurality of sensors, it is determined whether or not the pressure fluctuation satisfies the predetermined condition, or the determination is repeated, and the sensor signal determined to satisfy the predetermined condition is output. A method for controlling a biometric information measuring device, which further includes a step of identifying one or a plurality of sensors from among the sensors. It is a control method of a biological information measuring device including a plurality of sensors that are in contact with a living body and detect a pressure related to the biological information of the living body.
For each sensor signal output from the plurality of sensors, a sensor signal determination step for determining whether or not the pressure fluctuation satisfies a predetermined condition, and a sensor signal determination step.
A scan timing control step that changes the time interval determined in the sensor signal determination step for each of the sensor signals output from the plurality of sensors, and a scan timing control step.
In the sensor signal determination step, a sensor identification step for identifying one or more sensors from the sensors that output sensor signals determined to satisfy the predetermined conditions, and a sensor identification step.
The sensor signal output from the sensor hereinabove identified sensor identifying step, the control method of the biological information measuring apparatus comprising: the output step of outputting as a pressure fluctuation related to the biological information of the living body, the. A control program for operating a computer as the biometric information measuring device according to any one of claims 1 to 3, wherein the computer functions as the sensor signal determination unit and the sensor identification unit. ..

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