JP5839698B2 - Biological information processing apparatus and program - Google Patents

Description

  In the present invention, for example, a biosensor is provided in a device that is operated and worn by a user, and the biometric information of the user is detected by the biosensor to perform diagnosis of the user's health condition, attribute determination of the user himself, and the like. The present invention relates to a biological information processing apparatus and a program used in a system for performing the same.

  Biological information includes a pulse, a pulse wave, a blood flow, a blood pressure, and the like. Among these, a volume pulse wave, which is a waveform indicating a volume change of a peripheral artery, has attracted attention. Since plethysmogram may provide various useful information about human beings, it is not limited to medical diagnostic fields such as arteriosclerosis and detection of mental stress. Application is under consideration.

  For example, when a user operates an operation terminal represented by a remote controller of a television device, a video device, or an STB (Set top Box), the user attribute is determined from the volume pulse wave of the user, and the determination result is Based on this, a system for selecting and distributing content suitable for the user has been proposed.

  As a method for acquiring the volume pulse wave, a light receiving element is arranged in the vicinity of a living body part where a peripheral artery such as a fingertip or an earlobe exists, and among natural light or light emitted to the living body part by a light emitting element, A technique for measuring a volume change in a peripheral artery by measuring a change in the amount of light that is not absorbed by hemoglobin present in the peripheral artery but scattered outside the living body by a light receiving element is common (for example, Patent Document 1). See).

  However, in the method described in Patent Document 1, when a body motion or the like is applied to the light receiving element, a disturbance element may be superimposed on the light reception signal, and it may not be possible to acquire correct information regarding the volume pulse wave. Therefore, in order to eliminate the influence of such body movement, an acceleration sensor is provided in addition to the pulse wave sensor, and a technique for canceling the disturbance element superimposed on the pulse wave signal based on the information acquired by the acceleration sensor. (For example, refer nonpatent literature 1).

JP 2007-259912 A

Fumiaki Imai et al., “Removal of body motion artifact using acceleration sensor in photoelectric pulse wave measurement”, Biomedical Engineering, 44 (1): 148-155, 2006

  However, assuming that, for example, a mouse that is one of the input devices of a computer, a steering wheel of an automobile, or the like as an operation device to be installed as a pulse wave sensor, these operation devices are generally not provided with an acceleration sensor. Therefore, it is impossible to apply the technique described in Non-Patent Document 1 as it is. Although it is conceivable to newly provide an acceleration sensor, this is not preferable because it increases the cost of the operation device. Furthermore, the acceleration sensor generally cannot acquire effective acceleration data from an operation that does not cause a significant change in acceleration, such as a mouse click operation. For this reason, even if the disturbance removal technique using the above-described acceleration sensor is applied, there are cases where an external component included in the pulse wave signal cannot be removed depending on the type of the operation device.

  The present invention has been made paying attention to the above circumstances, and its object is to reduce the disturbance component contained in the detection signal of the biological sensor without using an acceleration sensor, and thereby, depending on the type of operation device. It is another object of the present invention to provide a biological information processing apparatus and program that can perform determination using biological information with high accuracy without incurring a cost increase.

In order to achieve the above object, one aspect of the present invention provides an operation sensor that detects an operation by a user and outputs operation information indicating the operation content, and a biosensor that outputs the biometric information of the user during the operation. in the biological information processing apparatus connected to the operation device comprising, means for receiving the operation information output from the operation sensor, and means for receiving the biological information output from the biometric sensor, said received biometric Means for performing processing for suppressing disturbance components included in the information . When a plurality of operation contents of the operation device by the user are defined, the means for performing the processing process associates disturbance information generated by the operation with each of the information representing the plurality of types of operation contents. A storage unit for storing the template waveform information to be expressed is provided. Based on the received operation information, an operation period by the user is detected, and template information associated with operation content is read from the storage unit, and at least the detected biometric information is detected. The template waveform information read from the storage unit is subtracted from the information corresponding to the operation period .

Therefore, according to one aspect of the present invention, even if a disturbance component is superimposed on the biological information output from the biological sensor due to body movement when the user operates the operation device, at least the operation period of the biological information A processing process is performed on the part corresponding to the above, and thereby disturbance components included in the biological information are suppressed. For this reason, it becomes possible to determine a user's state more correctly based on the biometric information in which the disturbance component is suppressed.
In addition, when there are a plurality of types of operation contents of the operation device by the user, template waveform information corresponding to the type of operation actually performed is selectively read from the storage unit, and the read template waveform information is Disturbance components included in the biological information are suppressed. For this reason, even when the user is operating the operation device and there are a plurality of types of operation contents, biometric information in which only the disturbance component is suppressed is obtained. Based on this, it is possible to accurately determine the user's state.

One aspect of the present invention is also characterized by comprising the following various aspects.
In the first aspect, when the operation content represented by the received operation information is a predetermined first content by means for performing the processing, at least the detected biometric information is detected. The information corresponding to the operation period is invalidated.
In this way, since the part including the disturbance component of the biological information is invalidated, it is possible to prevent a problem that the user's state is erroneously determined by the part including the disturbance component of the biological information.

  That is, according to one aspect of the present invention, the disturbance component included in the detection signal of the biosensor can be reduced without using an acceleration sensor, and thus biometric information can be obtained regardless of the type of operation device and without increasing the cost. It is possible to provide a biological information processing apparatus and a program that can perform determination using a high accuracy.

The block diagram which shows the structure of the biometric information detection system provided with the biometric information processing apparatus which concerns on 1st Embodiment of this invention. The figure which shows the structure of the pulse wave sensor used as a biosensor in the biometric information processing apparatus shown in FIG. The flowchart which shows the process sequence and process content by the signal processing part of the biological information processing apparatus shown in FIG. The figure which shows an example of the biometric information processing data memorize | stored in the operation database of the biometric information processing apparatus shown in FIG. The figure which shows the 1st example of the pulse wave signal processing based on the biometric information processing data shown in FIG. The figure which shows the 2nd example of the pulse wave signal processing based on the biological information processing data shown in FIG. The block diagram which shows the structure of the biometric information detection system provided with the biometric information processing apparatus which concerns on 2nd Embodiment of this invention. The figure which shows an example of the biometric information processing data memorize | stored in the operation database of the biometric information processing apparatus shown in FIG. The block diagram which shows the structure of the biometric information detection system provided with the biometric information processing apparatus which concerns on 3rd Embodiment of this invention.

Embodiments according to the present invention will be described below with reference to the drawings.
[First Embodiment]
(Constitution)
FIG. 1 is a block diagram showing the configuration of a biological information detection system provided with a biological information processing apparatus according to the first embodiment of the present invention. This system includes a mouse 100 as an operation device and a signal processing unit 200 having a function of a biological information processing apparatus.

  As is well known, the mouse 100 moves a pointer displayed on a personal computer, selects and determines an item, etc., and performs input by a click operation with the coordinate sensor 2 for acquiring the coordinate movement amount of the mouse. The button group 3 is provided. These coordinate sensor 2 and button group 3 constitute an operation sensor.

  Further, a pulse wave sensor 1 as a biological sensor is disposed on one side surface of the housing of the mouse 100. The installation position of the pulse wave sensor 1 is determined as a position where the user's thumb or the fingertip of the ring finger can come into contact with the user operating the mouse 100. The installation position is not limited to the side surface of the mouse 100 housing, and may be the upper surface, the rear side surface, or the like.

  The pulse wave sensor 1 is composed of, for example, a light emitting element 1a and a light receiving element 1b arranged side by side as shown in FIG. A near-infrared light LED (Light Emitting Diode) is used for the light emitting element 1a, and a photodiode or a phototransistor is used for the light receiving element 1b. The pulse wave sensor 1 irradiates near-infrared light to a living body part such as a fingertip of a user from the light emitting element 1a, and the light receiving element 1b receives the amount of light scattered according to the amount of hemoglobin in the blood. Then, the light receiving element 1b operates to output a time-series electric signal obtained by converting the amount of change in the scattered light into the amount of change in the current value or voltage value. The configuration of the pulse wave sensor is not limited to this, and a change in blood flow using a piezoelectric element may be detected as a pressure change and output as a time-series electrical signal.

  The signal processing unit 200 includes a preprocessing unit 10, an operation information acquisition unit 11, a signal processing unit 12, and an operation information database (operation information DB) 13. Among these, the preprocessing unit 10, the operation information acquisition unit 11, and the signal processing unit 12 excluding the operation information DB 13 are realized by causing a CPU (Central Processing Unit) to execute a program stored in a program memory (not shown). .

  The preprocessing unit 10 performs preprocessing necessary for signal processing in the subsequent signal processing unit 12 on the analog pulse wave signal output from the pulse wave sensor 1. This preprocessing includes, for example, amplification processing, filtering processing, and A / D conversion processing for the analog pulse wave signal output from the pulse wave sensor 1. Further, the preprocessing unit 10 also performs a process of giving a time stamp to the digital pulse wave signal after the A / D conversion in order to associate with the operation information output from the mouse 100 in time series.

  The amplification processing is realized by a known amplifier such as an operational amplifier or an instrumentation amplifier. Also, as an example of filter processing, a low-pass filter of about 10 Hz for removing ambient light emitted from indoor lighting such as a fluorescent lamp, or a band stop for removing AC components of 50/60 Hz superimposed on the power source. A filter is used.

  In the A / D conversion process, an analog signal is sampled at a sampling frequency of several hundreds to several kHz in order to accurately detect the peak position of the pulse wave signal. However, when counting the pulse rate, the sampling process is performed at a sampling frequency of several Hz to several tens Hz. In short, the sampling frequency is not limited to a specific sampling frequency, and may be set arbitrarily according to the application.

  Further, as a method for temporally associating the digital pulse wave signal and the operation information, for example, the pre-processing unit 10 and the operation information acquisition unit 11 are each provided with a clock that is synchronized with each other, and the digital pulse wave signal is respectively used by these clocks. In addition, a method of giving a time stamp to the operation information is used. However, the method of giving the time stamp is not limited to this, and any method may be applied as long as the method can temporally associate the digital pulse wave signal with the operation information.

  The operation information acquisition unit 11 receives operation signals of the coordinate sensor 2 and the button group 3 from the mouse 100. In the operation information DB 13, template waveform information is stored in association with operation numbers for identifying a plurality of assumed operation contents of the mouse 100. The template waveform information includes operation information representing the operation content and information representing the signal processing content. The information representing the signal processing content includes the signal processing content necessary for suppressing the waveform of the disturbance component superimposed on the pulse wave signal for each operation content, and signal waveform data used for actual processing.

  FIG. 4 shows an example of template waveform information stored in the operation information DB 13. In this example, the operation information representing the operation content is defined by the amount of coordinate change per unit time (that is, the moving speed of the mouse 100) and the number of clicks per unit time. In addition, the information indicating the signal processing content includes a command statement indicating what signal processing is performed on a signal in which time interval of the pulse wave signal, and waveform data used in the signal processing executed in accordance with the command statement. Including. As the waveform data, “data representing an invalid value” and “waveform data representing a disturbance component” are prepared. Among these, the waveform data representing the disturbance component is, for example, set a learning period, and in this learning period, the waveform of the disturbance component is extracted from the pulse wave signal for each operation content of the mouse 100 and the extracted waveform data is operated. What is necessary is just to make it memorize | store in information DB13. As specific examples of the signal processing, two processes are prepared: “a process for subtracting the waveform value of the disturbance component from the target section of the pulse wave signal” and “a process for replacing the target section of the pulse wave signal with an invalid value”. . However, the contents of signal processing and the waveform data used for the signal processing are not limited to the above two types.

  The signal processing unit 12 detects the operation period based on the operation information output from the operation information acquisition unit 11 and determines the operation content. Then, the template waveform information corresponding to the determined operation content is read from the operation information DB 13 and the pre-processed digital pulse wave signal output from the pre-processing unit 10 includes the detected operation period and its pre- and post-operation periods. A signal waveform is processed in accordance with the read template waveform information for a signal in a section corresponding to a certain period.

(Operation)
Next, the operation of the biological information detection system configured as described above will be described focusing on the operation of the signal processing unit 200 functioning as a biological signal processing apparatus.
FIG. 3 is a flowchart showing a processing procedure and processing contents of the signal processing unit 12 in the signal processing unit 200.

  Assume that the user moves or clicks the mouse 100 to operate a personal computer (not shown). Then, the coordinate movement amount is detected by the coordinate sensor 2, the click operation is detected by the switch connected to the button group 3, and these detection results are transmitted from the mouse 100 to the signal processing unit 200 as operation information. Further, when the user holds the mouse 100 for the mouse operation, the fingertip of the mouse touches the pulse wave sensor 1 to detect the user's pulse wave, and an analog pulse wave signal representing the waveform of the pulse wave is signal processed. Transmitted to the unit 200.

  On the other hand, in the signal processing unit 200, the operation information and the analog pulse wave signal transmitted from the mouse 100 are input to the operation information acquisition unit 11 and the preprocessing unit 10, respectively. Of these, the pre-processing unit 10 performs amplification processing, filtering processing, and A / D conversion processing on the input analog pulse wave signal, and further associates the operation information output from the mouse 100 in time series. A time stamp is given. The operation information acquisition unit 11 also gives a time stamp to the received operation information.

  In the signal processing unit 12, first, the operation period is detected and the operation content is determined based on the operation information to which the time stamp is given by the operation information acquisition unit 11. Then, from the pre-processed digital pulse wave signal output from the pre-processing unit 10, a signal corresponding to the detected operation period and a certain period before and after the operation period is extracted. Further, whether or not the template waveform information corresponding to the determined operation content is stored in the operation information DB 13 is determined by step S1 shown in FIG. If template waveform information corresponding to the operation content is stored as a result of this determination, the pulse wave signal is extracted from the extracted digital pulse wave signal according to the signal processing content described in the template waveform information in step S2. The signal waveform is processed to suppress the disturbance component included in.

  For example, it is assumed that the template waveform information shown in FIG. 4 is stored in the operation information DB 13 and the mouse 100 performs a relatively slow moving operation with a coordinate change amount per 0.1 second of 50 to 100 pixels in this state. Is done. In this case, the corresponding template waveform information is stored in the operation information DB 13 in association with the identification information “2”. For this reason, according to the information indicating the signal processing content described in the stored template waveform information, from the pre-processed digital pulse wave signal, the period in which the coordinate change has occurred and the signal for 0.3 seconds before and after the period. The waveform value corresponding to the disturbance component stored in advance is subtracted.

FIG. 5 shows an example of signal processing at this time. As shown in the figure, even when a pulse wave signal (b) in which a disturbance component generated by body movement of a mouse operation is superimposed on the original pulse wave signal (a) is input in the template waveform information. The waveform value (c) corresponding to the disturbance component is subtracted in accordance with the information indicating the signal processing content, whereby a pulse wave signal (d) with the disturbance component canceled is obtained.
Therefore, by inputting the pulse wave signal (d) from which the disturbance component is canceled to a biological information determination processing unit (not shown), the pulse wave signal obtained during the operation period of the mouse 100 in the biological information determination processing unit. Therefore, it is possible to accurately determine the user's biological information.

  On the other hand, it is assumed that the mouse 100 performs a high-speed moving operation with a coordinate change amount per 0.1 second of 100 pixels or more. In this case, the corresponding template waveform information is stored in the operation information DB 13 in association with the identification information “1”. For this reason, according to the information indicating the signal processing content described in the stored template waveform information, the period of the coordinate change in the pre-processed digital pulse wave signal and the signal for 1 second before and after that are It is replaced with the stored invalid value.

FIG. 6 shows an example of signal processing at this time. As shown in the figure, even when a pulse wave signal (b) in which a severe disturbance component generated by body movement of a mouse operation is superimposed on the original pulse wave signal (a) is input to the template waveform information. According to the information indicating the signal processing content, the operation period in which the disturbance component is superimposed and the signal waveform for 1 second before and after the operation period are replaced with the invalid value (c).
Therefore, in the biometric information determination processing unit, the determination process of the user's biometric information is not performed based on the above operation period and the signal waveform for one second before and after the operation period, and thus erroneous determination is performed in advance. It becomes possible to prevent.

  If the template waveform information corresponding to the operation content is not stored in the operation information DB 13 in the determination in step S1, the signal processing in step S2 is not performed, and the pulse wave signal input from the preprocessing unit 10 is not performed. Is directly output to a biological information determination unit (not shown).

  As described above in detail, in the first embodiment, the signal processing unit 200 is provided with the preprocessing unit 10, the operation information acquisition unit 11, the signal processing unit 12, and the operation information DB 13, and is arranged on one side of the housing of the mouse 100. The pulse wave signal output from the pulse wave sensor is amplified, filtered and A / D converted by the pre-processing unit 10. Then, the signal processing unit 12 detects the operation period and determines the operation content based on the operation information output from the operation information acquisition unit 11, and determines the template waveform information corresponding to the determined operation content as the operation information DB 13. Read from. Then, according to the read template waveform information, a disturbance component is suppressed with respect to a signal included in the detected operation period and a certain period before and after the detected operation period in the pre-processed pulse wave signal. The signal waveform is processed.

  Further, the following processing is performed as a specific processing of the signal waveform. That is, when the movement operation amount per unit time of the mouse 100, that is, the movement speed is smaller than a preset threshold value, and when the number of click operations per unit time is less than a preset threshold value, A process of subtracting the waveform of the disturbance component previously learned and stored from the pulse wave signal on which the disturbance component is superimposed is performed. On the other hand, when the movement speed of the mouse 100 is equal to or higher than the threshold value and when the number of click operations per unit time is equal to or higher than the threshold value, the section in which the disturbance component of the pulse wave signal is superimposed is replaced with an invalid value. Processing is performed.

  Therefore, in the biological information determination processing unit, when the process of subtracting the waveform of the disturbance component is performed, the biological information of the user can be accurately determined even from the pulse wave signal obtained during the operation period of the mouse 100. It becomes possible. Further, when the processing for invalidating the section including the disturbance component is performed, the determination process of the user's biological information is not performed based on the operation period of the mouse 100 and the signal waveform for 1 second before and after the operation period. Thus, it is possible to prevent an erroneous determination from being made.

[Second Embodiment]
(Constitution)
FIG. 7 is a block diagram showing a configuration of a biological information detection system provided with a biological information processing apparatus according to the second embodiment of the present invention. In the figure, the same parts as those in FIG.

  Pulse wave sensors 4 </ b> L and 4 </ b> R as living body sensors are disposed on both side surfaces of the housing of the mouse 100. The installation positions of these pulse wave sensors 4L and 4R are determined at positions where the user's thumb and the fingertip of the ring finger can contact each other while the user is operating the mouse 100.

  Each of the pulse wave sensors 4L and 4R includes a light emitting element 1a made of a near infrared LED and a light receiving element 1b made of a photodiode or a phototransistor as shown in FIG. Then, near-infrared light is irradiated from the light emitting element 1a to a living body part such as a fingertip of the user, and the amount of scattered light is received by the light receiving element 1b according to the amount of hemoglobin in the blood. An analog pulse wave signal expressed as a change in current or voltage value is output.

  The preprocessing unit 10 of the signal processing unit 200 performs preprocessing including amplification processing, filtering processing, and A / D conversion processing on each analog pulse wave signal output from the pulse wave sensors 4L and 4R. Each pre-processed digital pulse wave signal is input to the signal processing unit 12.

  The operation information DB 13 of the signal processing unit 200 stores a plurality of template waveform information necessary for waveform processing of the signal processing unit 12. This template waveform information represents the waveform of the disturbance component superimposed on the pulse wave signals of the pulse wave sensors 4L and 4R when the mouse 100 is operated, and is associated with the identification information for each operation content. Stored in the operation information DB 13.

  The signal processing unit 12 of the signal processing unit 200 detects the operation period based on the operation information output from the operation information acquisition unit 11 and determines the operation content. Then, the template waveform information corresponding to the determined operation content is read from the operation information DB 13, and the detected operation period and before and after the detected pre-processed digital pulse wave signals output from the preprocessing unit 10. A signal in a section corresponding to a certain period of time is extracted, and processing of the signal waveform is performed on the extracted signal according to the read template waveform information.

(Operation)
Next, the operation of the biological information detection system configured as described above will be described focusing on the operation of the signal processing unit 200 functioning as a biological signal processing apparatus.
When the user grips the mouse 100 to operate a personal computer (not shown), the thumb and ring finger touch the pulse wave sensors 4L and 4R, respectively, and the pulse wave sensors 4L and 4R respectively A pulse wave is detected, and an analog pulse wave signal representing the waveform is output to the signal processing unit 200.

  On the other hand, in the signal processing unit 200, each analog pulse wave signal output from the mouse 100 is input to the preprocessing unit 10. The preprocessing unit 10 performs amplification processing, filtering processing, and A / D conversion processing on each of the input analog pulse wave signals, and further associates the operation information simultaneously output from the mouse 100 with time series. A time stamp is given.

  The signal processing unit 12 first detects the operation period based on the operation information output from the operation information acquisition unit 11 and determines the operation content. Then, from the pre-processed digital pulse wave signals output from the pre-processing unit 10, signals in the sections corresponding to the detected operation period and a fixed period before and after the operation period are extracted. Further, it is determined whether or not the template waveform information corresponding to the determined operation content is stored in the operation information DB 13, and if the template waveform information corresponding to the operation content is stored as a result of the determination, the template waveform information is stored. In accordance with the signal processing content described in the waveform information, a signal waveform processing for suppressing the disturbance component included in the pulse wave signal is performed on each of the extracted digital pulse wave signals.

  For example, it is assumed that the template waveform information shown in FIG. 8 is stored in the operation information DB 13 and the mouse 100 is left clicked once in this state. In this case, the corresponding template waveform information is stored in the operation information DB 13 in association with the identification information “4”. Therefore, according to the information indicating the signal processing content described in the stored template waveform information, the pulse wave sensor 4L installed on the left side surface of the mouse 100 among the digital pulse wave signals after the pre-processing is obtained. The pulse wave signal is subtracted by a signal waveform corresponding to a preset disturbance component from a signal waveform in a section corresponding to 0.5 seconds before and after the time when the click operation is performed. In addition, the pulse wave signal obtained by the pulse wave sensor 4R installed on the right side surface of the mouse 100 is output to the biological information determination unit as it is without being subjected to waveform processing.

  In general, when the left button of the mouse 100 is clicked, the influence of the body movement on the pulse wave sensor 4L arranged on the left side surface of the mouse 100 is the influence of the body movement on the pulse wave sensor 4R arranged on the right side surface of the mouse 100. It is considered to be larger than Accordingly, when the left button click operation is performed as described above, the period during which the left click operation is performed among the pulse wave signals obtained by the pulse wave sensor 4L disposed on the left side surface of the mouse 100. The signal waveform is processed by subtracting the signal waveform of the section corresponding to 1 with the signal waveform corresponding to the disturbance component and outputting the pulse wave signal obtained by the pulse wave sensor 4R arranged on the right side surface of the mouse 100 as it is. By performing the above, it is possible to selectively perform the disturbance component suppression processing on the section corresponding to the operation period of the pulse wave signal on which the disturbance component is superimposed.

As described above in detail, in the second embodiment, when the pulse wave sensors 4L and 4R are provided on both side surfaces of the mouse 100, the pulse wave is generated according to the template waveform information corresponding to the operation content of the mouse 100. Signal waveform processing for suppressing disturbance components is individually performed on each of the pulse wave signals obtained by the sensors 4L and 4R.
Therefore, the biological information determination processing unit can accurately determine the user's biological information from any of the pulse wave signals obtained by the pulse wave sensors 4L and 4R.

[Third Embodiment]
FIG. 9 is a block diagram showing a configuration of a biological information detection system provided with a biological information processing apparatus according to the third embodiment of the present invention. In the figure, the same parts as those in FIG.

  In the third embodiment, a vehicle handle device 300 is used as an operation device, and pulse wave sensor groups 6L and 6R are disposed at portions of the peripheral surface of the handle 5 that are gripped by the user with the left hand and the right hand, respectively. ing.

In each of the pulse wave sensor groups 6L and 6R, for example, as shown in FIG. 2, a light emitting element 1a made of a near infrared light LED and a light receiving element 1b made of a photodiode or a phototransistor are arranged side by side. Then, the near-infrared light is irradiated from the light emitting element 1a to a living body part such as a user's finger or palm, and the amount of scattered light according to the amount of hemoglobin in the blood is received by the light receiving element 1b. An analog pulse wave signal expressing the quantity as a change in current or voltage value is output.
The handle device is not limited to an automobile, and may be a handle provided in a train, an aircraft, or a construction machine.

  The operation information acquisition unit 11 of the signal processing unit 200 receives the operation information of the handle 5 output from the handle device 300, for example, the information indicating the rotation direction of the handle 5 and the rotation amount per unit time.

  The preprocessing unit 10 of the signal processing unit 200 performs preprocessing including amplification processing, filtering processing, and A / D conversion processing on each analog pulse wave signal output from the pulse wave sensor groups 6L and 6R, Each pre-processed digital pulse wave signal is input to the signal processing unit 12.

  The operation information DB 13 of the signal processing unit 200 stores a plurality of template waveform information necessary for waveform processing of the signal processing unit 12. This template waveform information represents the waveform of the disturbance component superimposed on the pulse wave signals obtained by the pulse wave sensor groups 6L and 6R when the handle 5 is operated. It is associated and stored in the operation information DB 13. As the operation information of the handle 5, for example, a change amount of the rotation angle when the handle 5 is rotated, a value obtained by differentiating the change, etc. are considered. What is necessary is just to memorize | store in DB13 beforehand.

  The signal processing unit 12 of the signal processing unit 200 detects the operation period based on the operation information output from the operation information acquisition unit 11 and determines the operation content. Then, the template waveform information corresponding to the determined operation content is read from the operation information DB 13, and the detected operation period and before and after the detected pre-processed digital pulse wave signals output from the preprocessing unit 10. A signal in a section corresponding to a certain period of time is extracted, and processing of the signal waveform is performed on the extracted signal according to the read template waveform information.

  With such a configuration, the disturbance component superimposed by the handle operation is individually suppressed for each pulse wave signal obtained by the pulse wave sensor groups 6L and 6R according to the operation content of the handle 5 by the user. Signal waveform processing is performed. Therefore, even when the user is operating the steering wheel, it is possible to accurately determine the user's biological information without being affected by the operation.

[Other Embodiments]
The present invention is not limited to the above embodiment. For example, as an operation device, a portable terminal such as a mobile phone or a smart phone, a television receiver, a video recorder, or a remote controller used in an audio device can be used. In the above embodiment, the biological information processing apparatus is provided separately from the operation device, but may be incorporated in the operation device.
In addition, the processing procedure and processing contents of the biological information processing, the type of the biological sensor, and the like can be variously modified and implemented without departing from the gist of the present invention.

  In short, the present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the components without departing from the scope of the invention in the implementation stage. Moreover, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above embodiments. For example, some components may be deleted from all the components shown in each embodiment. Furthermore, you may combine suitably the component covering different embodiment.

  DESCRIPTION OF SYMBOLS 1,4L, 4R, 6L, 6R ... Pulse wave sensor, 1a ... Light emitting element, 1b ... Light receiving element, 2 ... Coordinate sensor, 3 ... Button group, 5 ... Handle, 10 ... Pre-processing part, 11 ... Operation information acquisition part , 12 ... signal processing unit, 13 ... operation information database (operation DB), 100 ... mouse, 200 ... signal processing unit, 300 ... handle device.

Claims (3)

A biological information processing apparatus connected to an operation device comprising an operation sensor for detecting an operation by a user and outputting operation information representing the operation content, and a biosensor for outputting the biometric information of the user during the operation,
Means for receiving operation information output from the operation sensor;
Means for receiving biological information output from the biological sensor;
And means for performing processing for suppressing the disturbance component included in the prior SL received biometric information,
The means for performing the processing is
When a plurality of operation contents of the operation device by the user are defined, a storage unit that stores template waveform information representing a disturbance component generated by the operation contents in association with each of the information representing the plurality of operation contents When,
Means for reading out template information associated with the operation content from the storage unit based on the received operation information;
Means for detecting an operation period by the user based on the received operation information;
Means for subtracting template waveform information read from the storage unit from information corresponding to at least the detected operation period of the received biological information;
Biological information processing apparatus, characterized in that it comprises a.   The means for performing the processing corresponds to at least the detected operation period of the received biological information when the operation content represented by the received operation information is a first content determined in advance. The biological information processing apparatus according to claim 1, wherein the information is invalidated. The program which makes the computer with which the said biometric information processing apparatus performs the process which each means with which the biometric information processing apparatus of Claim 1 or 2 is provided performs.

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