JP4296963B2 - On-vehicle health diagnosis apparatus and on-vehicle health diagnosis method - Google Patents

Description

  The present invention relates to an in-vehicle health diagnosis apparatus and an in-vehicle health diagnosis method, and more particularly to an in-vehicle health diagnosis apparatus and an in-vehicle health diagnosis method for diagnosing the health of an occupant seated on a seat.

  When driving a vehicle, if the health condition is not favorable, there is a possibility that appropriate driving cannot be performed due to a decrease in concentration. For example, when driving without a long break, fatigue accumulates and the health condition deteriorates.

  Therefore, a configuration has been proposed in which an optical sensor for heart rate detection is provided on the steering wheel in order to detect the heart rate, which is one barometer for judging the health condition of the driver who is driving the vehicle (for example, a patent) Reference 1). According to this configuration, the heartbeat detection signal can be obtained from the fingertip portion and the palm portion in a natural state even while the driver is driving.

  Further, a configuration has been proposed in which electrodes are provided on the seat cushion and the seat back of the driver's seat, the posture of the driver is detected from the electrodes, and the driver's fatigue is determined from the posture (for example, see Patent Document 2). ). According to this configuration, it is possible to prevent in advance an adverse effect on the driving operation due to fatigue by warning and notifying the driver of the occurrence of fatigue while the degree of fatigue is small.

JP-A-63-71236 JP 2003-70774 A

  However, when the relationship between the steering wheel and the driver's posture changes, there is a problem that the detection signal changes. Also, for example, when the driving posture is far away from the normal driving posture, for example, when the driver is not leaning against the back of the seat back, the back muscles are strong and unnecessary myoelectric potential is generated. On the other hand, when the arm is fully extended, the contact between the steering wheel and the palm becomes unstable.

  Further, in the invention of Patent Document 2, since the physique of the driver is not taken into account, it is not clear which part of the body the pressure is, and the driver may not be able to accurately determine the posture.

  Accordingly, an object of the present invention is to provide an in-vehicle health diagnosis apparatus and an in-vehicle health diagnosis method that perform highly accurate health diagnosis.

  The in-vehicle health diagnosis apparatus of the present invention is provided on a steering wheel, detects biological information of an occupant seated on a seat, outputs biological information signals, and occupants based on the biological information signals. A posture of an occupant suitable for detecting biological information by the biological information detecting means based on the physique information, a diagnostic means for diagnosing the health condition of the vehicle, a physique information acquiring means for acquiring the physique information of the occupant Normal posture deriving means for obtaining a normal posture, current posture information acquiring means for acquiring posture information for specifying the sitting posture of the occupant, posture adjusting means for adjusting the posture of the occupant, and the posture adjusting unit Posture control means for controlling the vehicle, and the posture control means obtains a difference between the current posture and the normal posture, and if the difference is not within a predetermined allowable range, The energizing control the position adjustment means so as to approach the normal posture.

  Further, according to another aspect of the present invention, based on the biological information signal, the biological information detection means provided on the steering wheel, detects biological information of an occupant seated on the seat, and outputs a biological information signal. Diagnosis means for diagnosing the health condition of the occupant, physique information acquisition means for acquiring the physique information of the occupant, and an occupant posture suitable for the biometric information detection means to detect biometric information based on the physique information Normal posture deriving means for obtaining a normal posture, posture adjusting means for adjusting the posture of the occupant, posture control means for controlling the posture adjusting means, and a biological information signal output from the biological information detecting means. And a biological information signal determination unit that determines whether the diagnosis unit can appropriately perform a diagnosis, and the posture control unit includes the biological information signal determination unit in the biological information signal determination unit. When the body information signal is determined not to be the signal can be properly diagnosed, to control the position adjustment means to approach the occupant attitude to the normal attitude.

  According to another aspect of the present invention, the posture control means determines the posture of the occupant until the biological information signal determination means determines that the biological information signal is a signal that can be appropriately diagnosed. The posture adjusting means is controlled so as to approach the posture.

  According to another aspect of the present invention, the posture adjusting means is provided on the seat, and is a seat actuator for changing at least one of a slide position, a reclining angle, and a height adjuster position of the seat, or A steering actuator provided on the steering wheel support for changing at least one of a telescopic position and a tilt position of the steering wheel;

  Further, according to another aspect of the present invention, the apparatus includes an attitude adjustment operation instruction acquisition unit that acquires, from the occupant, an instruction for approaching the occupant's attitude to the normal attitude by the attitude adjustment unit, the attitude control The means controls the posture adjustment means according to the instruction acquired by the posture adjustment operation instruction acquisition means.

  According to another aspect of the present invention, the instruction acquired by the posture adjustment operation instruction acquisition unit includes an intermediate position instruction. When the intermediate position instruction is acquired, the posture control unit The posture adjusting means is controlled so that the posture becomes an intermediate posture which is intermediate between the current posture and the normal posture.

  According to another aspect of the present invention, biological information detection means provided on the steering wheel for detecting biological information of an occupant seated on a seat and outputting a biological information signal, and signal processing of the biological information signal are performed. A diagnostic processing means for diagnosing the health condition of the occupant based on the biological information signal; a physique information acquisition means for acquiring the physique information of the occupant; and the biological body based on the physique information. A normal posture deriving unit for obtaining a normal posture which is a posture of an occupant suitable for detecting biological information by the information detecting unit; a current posture information acquiring unit for acquiring posture information for specifying the sitting posture of the occupant; Control means for controlling the biological information detection means or the diagnosis means, and the control means obtains a difference between the current posture and the normal posture, and the difference is included in a predetermined allowable range. If not, it stops the operation of the biological information detecting unit or the diagnostic means.

  Further, according to another aspect of the present invention, based on the biological information signal, the biological information detection means provided on the steering wheel, detects biological information of an occupant seated on the seat, and outputs a biological information signal. Diagnostic means for diagnosing the health condition of the occupant, a signal processing section for signal processing of the biological information signal, which is disposed between the biological information detection means and the diagnostic means, and controls the signal processing section A signal processor control means, a physique information acquisition means for acquiring the physique information of the occupant, and a normal posture that is an occupant posture suitable for the biometric information detection means to detect the biometric information based on the physique information. Normal posture deriving means to be obtained; and current posture information acquiring means for acquiring posture information for specifying the sitting posture of the occupant; and the signal processing unit control means includes the current posture and the normal posture. Obtains a difference, it changes the signal processing parameters in the signal processing unit based on the difference amount.

  According to another aspect of the present invention, the current posture information acquisition means is provided on the seat and detects at least one of a slide position, a reclining angle, and a height adjuster position of the seat. At least one of a steering position detecting means for detecting at least one of a telescopic position and a tilt position of the steering wheel, and a seat pressure sensor for detecting a seat pressure distribution of the occupant. Contains one.

  According to another aspect of the present invention, the normal posture obtained by the normal posture deriving means is a normal seat position in which at least one of a slide position, a reclining angle, and a height adjuster position of the seat is specified, and The seat pressure distribution of the occupant is specified by at least one of the specified seat pressure, or the at least one of the telescopic position and the tilt position of the steering wheel.

  In addition, the on-vehicle health diagnosis method of the present invention includes a biological information detection step of detecting biological information of an occupant seated on a seat and outputting a biological information signal by means of biological information detection means provided on a steering wheel, Based on the information signal, a diagnosis step for diagnosing the health condition of the occupant, a physique information acquisition step for acquiring the physique information of the occupant, and a posture of the occupant suitable for the biological information detection means to detect the biological information A normal posture derivation step for obtaining a normal posture based on the physique information, a current posture information acquisition step for acquiring posture information for specifying the sitting posture of the occupant, and the current posture and the normal posture. In the posture comparison step for obtaining a difference and the posture comparison step, if the difference is not included in a predetermined allowable range, the posture of the occupant is adjusted. Operating the attitude adjusting means for, including a posture adjustment step closer to the occupant attitude to the normal attitude.

  According to another aspect of the present invention, a biological information detection step of detecting biological information of an occupant seated on a seat and outputting a biological information signal by biological information detection means provided on a steering wheel, and the biological information Based on the information signal, a diagnosis step for diagnosing the health condition of the occupant, a physique information acquisition step for acquiring the physique information of the occupant, and a posture of the occupant suitable for the biological information detection means to detect the biological information A normal posture deriving step for obtaining a normal posture based on the physique information, a biological information signal determining step for determining whether the biological information signal is a signal that can be appropriately diagnosed in the diagnostic step, and the biological information In the signal determination step, when it is determined that the biological information signal is not a signal that can be appropriately diagnosed in the diagnosis step, The position adjustment means for adjusting the serial occupant posture is operated, including a posture adjustment step closer to the occupant attitude to the normal attitude.

  According to another aspect of the present invention, the posture adjustment step operates the posture adjustment means until it is determined in the biological information signal determination step that the biological information signal is a signal that can be appropriately diagnosed. The posture of the occupant is brought close to the normal posture.

  Further, according to another aspect of the present invention, in the posture adjustment step, the seat is operated to bring the posture of the occupant closer to the normal posture, the seat slide position, the reclining angle, A seat actuator for changing at least one of the height adjuster positions, or a steering actuator for changing at least one of the telescopic position and the tilt position of the steering wheel provided on the steering wheel support portion.

  Further, according to another aspect of the present invention, the posture adjustment step includes a posture adjustment operation instruction acquisition step of acquiring, from the occupant, an instruction to approach the normal posture from the current posture in the posture adjustment step. In the above, the current posture is brought closer to the normal posture in accordance with the instruction acquired in the posture adjustment operation instruction acquisition step.

  According to another aspect of the present invention, the instruction acquired from the occupant in the posture adjustment operation instruction acquisition step includes an intermediate position instruction, and when the intermediate position instruction is acquired, the first posture adjustment In the step and the second posture adjustment step, the current posture is brought closer to the normal posture so that the posture of the occupant becomes an intermediate posture that is intermediate between the current posture and the normal posture.

  According to another aspect of the present invention, a biological information detection step of detecting biological information of an occupant seated on a seat and outputting a biological information signal by biological information detection means provided on a steering wheel, and the biological information Based on the information signal, a diagnosis step for diagnosing the health condition of the occupant, a current posture information acquisition step for acquiring posture information for specifying the sitting posture of the occupant, and a physique information for acquiring the physique information of the occupant An obtaining step; a normal posture deriving step for obtaining a normal posture that is a posture of an occupant suitable for detecting biological information in the biological information detection step based on the physique information; and the current posture and the normal posture. In the posture comparison step for obtaining the difference and the posture comparison step, if the difference is not included in a predetermined allowable range, the biological information Including a stall stopping the medical examination in the biological information detection or the diagnosis step in exit step.

  According to another aspect of the present invention, a biological information detection step of detecting biological information of an occupant seated on a seat and outputting a biological information signal by biological information detection means provided on a steering wheel, and the biological information Performing signal processing on the information signal, and diagnosing the occupant's health based on the biological information signal; and acquiring current posture information acquiring step for acquiring posture information for specifying the sitting posture of the occupant; A physique information acquisition step for acquiring the physique information of the occupant, and a normal posture derivation step for obtaining a normal posture that is a posture of the occupant suitable for detecting the biometric information in the biometric information detection step based on the physique information; A signal processing parameter for obtaining a difference between the current posture and the normal posture and changing a signal processing parameter in the signal processing based on the difference amount. Includes a data changing step, the.

  According to another aspect of the present invention, in the current posture information acquisition step, the seating posture of the occupant is provided in the seat, and at least one of a slide position, a reclining angle, and a height adjuster position of the seat. Seat position detecting means for detecting the steering wheel, steering position detecting means for detecting at least one of a telescopic position and a tilt position of the steering wheel, and a seat for detecting the seat pressure distribution of the occupant It is specified by at least one of the pressure sensors.

  According to another aspect of the present invention, the normal posture derived in the normal posture derivation step is a normal seat position in which at least one of a slide position, a reclining angle, and a height adjuster position of the seat is specified, And at least one of the normal seat pressure in which the seat pressure distribution of the occupant is specified or the normal steering wheel position in which at least one of the telescopic position and the tilt position of the steering wheel is specified.

  ADVANTAGE OF THE INVENTION According to this invention, a highly accurate medical examination can be performed with respect to a passenger | crew, and the bad influence to the driving operation resulting from fatigue can be prevented in advance.

  Hereinafter, the best mode for carrying out the present invention (hereinafter referred to as an embodiment) will be described with reference to the drawings.

  FIG. 1 is a functional block diagram of an on-vehicle health diagnosis apparatus 100 according to the present invention. The in-vehicle health diagnosis apparatus 100 according to the present invention detects biological information of an occupant, outputs a biological information signal, acquires a biological information signal output from the biological information detection means 10, and acquires biological information. A control computer 14 having a diagnostic means 12 for performing a health check on the passenger based on the signal is provided. The biological information detection means 10 is, for example, a pulse wave sensor provided on the steering wheel, and the pulse wave signal detected by the pulse wave sensor includes information indicating the state of the circulator and the like.

  The control computer 14 is electrically connected to a current posture information acquisition unit 18 that receives posture information for specifying the sitting posture of the occupant. The current posture information acquisition means 18 is provided in a seat on which a passenger is seated, and is provided in a seat position detection means 36 that detects at least one of the slide position, reclining angle, and height adjuster position of the seat, and a steering wheel support section. A steering position detecting means 38 for detecting at least one of a telescopic position and a tilt position of the steering wheel, and a seat cushion and a seat back for judging the posture of the occupant on the seat, It includes at least one of the sitting pressure sensors 40 that detect the pressure distribution. These pieces of information acquired from the current posture information acquisition unit 18 are stored as current posture information in a storage device such as a semiconductor memory provided in the control computer 14.

  In addition, the control computer 14 is electrically connected to a physique information acquisition means 16 for acquiring the physique information of the occupant. The physique information acquisition means 16 is configured by an information input device such as a keyboard or an information storage medium reader, and acquires information such as the height, weight of the occupant, arm length, gender, hip size, etc. . The physique information may be input by the occupant at the start of the operation of the health checkup apparatus 100, or information on the purchaser and the planned driving person may be input in advance by a dealer at the time of vehicle purchase. The inputted physique information is stored in a storage device such as a semiconductor memory provided in the control computer 14. When a plurality of physique information is stored and registered in advance, when the operation of the health diagnostic apparatus 100 is started, a selection is made from a list of registered persons displayed on the display device of the control computer 14.

  What is characteristic in the present invention is that the control computer 14 determines a normal posture, which is a posture of an occupant suitable for the biological information detection means 10 to detect biological information based on the physique information acquired by the physique information acquisition means 16. It is provided with the required normal posture deriving means 26.

  The positional relationship between the posture of the occupant and the biological information detection means 10 is, for example, whether the front / rear posture of the arm is in an appropriate range for the measurement of the biological information detection means 10, whether the seat slide position, the back position, the steering wheel telescopic position It is related to the height of the occupant and whether the vertical posture of the arm is within a range suitable for the measurement of the biological information detecting means 10 is related to the seat height position, the tilt position of the steering wheel, and the height of the occupant. . Also, whether the lower body of the occupant is in proper contact with the seat cushion, no extra force is applied to the back muscles, etc., and the position is such that unnecessary myoelectric potential is not detected, seat pressure distribution, occupant height, and weight Is related to. Therefore, the normal posture, which is the posture of the occupant suitable for the biological information detecting means 10 to detect the biological information, from the physique information such as the sitting height, the arm length, the sex, and the hip size in addition to the height and weight of the occupant. Can be sought.

  In the normal posture, the back of the seat back is moderately held, the steering wheel is gripped with the arms relaxed, and the sensor provided on the steering wheel and the palm can maintain stable contact. Is a posture in which the relationship between and is a predetermined relationship. If the occupant is in a normal posture, stable biological information can be detected. The control computer 14 includes the seat slide position, the back position, and the height position, the steering wheel telescopic position, the tilt position, and the seating pressure distribution that realize this normal posture as normal posture information. Store in the storage device.

  Further, the control computer 14 is electrically connected with a posture adjusting means 20 for adjusting the posture of the occupant, and the control computer 14 includes a posture control means 32 for controlling the posture adjusting means 20. The posture adjustment means 20 is provided on a seat on which an occupant is seated, and is provided on a seat actuator 42 for changing at least one of the slide position, reclining angle, and height adjuster position of the seat, or a steering wheel support portion. It includes at least one of the steering actuators 44 for changing at least one of the telescopic position and the tilt position of the steering wheel.

  The posture control unit 32 obtains a difference between the current posture information output from the current posture information acquisition unit 18 and the normal posture information output from the normal posture derivation unit 26, and the difference is included in a predetermined allowable range. If not, the posture adjusting means 20 is controlled to bring the occupant's posture closer to the normal posture. According to this configuration, since the posture of the occupant approaches a normal posture from which the biological information detection unit 10 can obtain a good biological information signal from the current posture, the diagnostic unit 12 performs a highly accurate health diagnosis. be able to.

  Furthermore, the control computer 14 preferably includes a biological information signal determination unit 24 that determines whether the biological information signal output from the biological information detection unit 10 is a signal that can be appropriately diagnosed by the diagnosis unit 12. The biological information signal determination unit 24 determines that the biological information signal is not a signal that can be appropriately diagnosed by the diagnosis unit 12, and outputs a determination signal representing the determination result. The posture control means 32 that has received the determination signal that the biological information signal is not a signal that can be properly diagnosed by the diagnosis means 12 controls the posture adjustment means 20 to bring the posture of the passenger closer to the normal posture. According to this configuration, the diagnosis unit 12 performs a health check only when the occupant's posture is different from the normal posture assumed to be able to acquire a good biological information signal within a predetermined allowable range, and thus has high accuracy. A medical examination can be performed.

  Here, the posture control means 32 determines that the biological information signal is a signal that can be diagnosed appropriately in the biological information signal determination means 24, and obtains the determination signal from the biological information signal determination means 24 until It is preferable to control the posture adjusting means 20 so that the posture of the occupant approaches the normal posture. According to this configuration, since the posture of the occupant is brought close to the normal posture until the diagnostic means 12 can acquire a biological information signal that can be properly diagnosed, a highly accurate health diagnosis can be performed.

  Furthermore, the control computer 14 preferably includes a control means 28 for controlling the biological information detection means 10 or the diagnosis means 12. The control unit 28 controls the biological information detection unit 10 or the diagnostic unit 12 based on the current posture information received by the current posture information acquisition unit 18 and the normal posture information derived by the normal posture deriving unit 26. For example, the control unit 28 obtains a difference between the current posture and the normal posture, and stops the operation of the biological information detection unit 10 or the diagnosis unit 12 when the difference is not included in a predetermined allowable range. According to this configuration, the diagnostic unit 12 acquires a biological signal only when the biological posture signal is assumed to be good and the difference between the normal posture and a predetermined allowable range is obtained. Since the diagnosis is performed, a highly accurate health check can be performed.

  In addition, the control unit 28 preferably acquires a determination signal from the biological information signal determination unit 24. When the determination signal that the biological information signal is not a signal that can be diagnosed appropriately is acquired, the control unit 28 stops the operation of the biological information detection unit 10 or the diagnostic unit 12.

  In addition, the control computer 14 includes a signal processing unit 22 that performs signal processing as a preceding stage so that the diagnosis unit 12 can suitably perform a health check on the biological information signal input to the diagnosis unit 12, and the signal It is preferable to include signal processing unit control means 30 for changing signal processing parameters of the processing unit. The signal processing unit control means 30 obtains a difference between the current posture information and the normal posture information, and changes a signal processing parameter in the signal processing unit 22 based on the difference amount. The signal processing parameters in the signal processing unit 22 include, for example, filter characteristics for removing noise included in the biological information signal output from the biological information detection unit 10, signal amplification gain, and signal averaging time. When the difference between the current posture and the normal posture is large, the amplitude of the biological information signal tends to be small or the disturbance tends to be large. Therefore, the signal processing unit control means 30 changes the filter characteristics so that low-frequency noise can be largely removed, increases the amplification gain, or lengthens the averaging time when the difference amount is large. Change the parameters.

  The posture adjustment operation instruction acquisition unit 34, for example, when the current posture is different from the normal posture and the biological information detection unit 10 cannot detect a biological signal suitable for performing a health check, the seat actuator 42 and the steering actuator 44. An instruction is obtained from the occupant on how to operate the vehicle to approach the normal posture. The posture adjustment operation instruction includes, for example, an instruction that priority is given to obtaining high accuracy of a health check and an instruction that the change in posture is not increased as much as possible from the current posture. When an instruction to give priority to obtaining high accuracy of a health checkup is acquired, the seat actuator 42 and the steering actuator 44 are moved from the current posture to the normal posture. On the other hand, there is an intermediate position instruction as an instruction to prevent a change in posture from the current posture as much as possible. When the intermediate position instruction is acquired, the seat slide position, the reclining angle, the height adjuster position, the telescopic position of the steering wheel, or the tilt is moved to a position between the current posture and the normal posture by the seat actuator 42 and the steering actuator 44. Move each position. The posture adjustment operation instruction acquisition means 34 may be constituted by a touch panel switch on the display device of the control computer 14 or may be constituted by an independent switch. According to the configuration including the posture adjustment operation instruction acquisition unit 34 capable of acquiring the intermediate position instruction, the occupant's posture can be corrected to an intermediate position between the current posture and the normal posture. 10, the diagnostic means 12 can detect good biological information more suitable for health checkup, and the accuracy of the health checkup can be improved and the sense of incongruity in correcting the posture of the occupant can be reduced.

  Next, the operation of the in-vehicle health diagnostic apparatus 100 will be described. 2 and 3 are flowcharts for explaining the operation of the in-vehicle health diagnostic apparatus 100. FIG.

  First, the control computer 14 acquires the occupant's physique information from the physique information acquisition means 16 (S10). If the physique information of the occupant is stored in the storage device of the control computer 14 in advance, the physique information of the occupant is read from the storage device. Information is input from an input device such as a keyboard and a touch panel, or information is read from an information storage medium on which physique information is recorded. When a plurality of physique information is stored in the storage device of the control computer 14 in advance, the physique information is specified by selecting a corresponding occupant from a list of subjects displayed on a display device connected to the control computer 14.

  Next, based on the acquired physique information of the occupant, a normal posture most suitable for the biometric information detection of the biometric information detection means 10 is derived for the occupant (S12).

  Next, the current seat and steering position information and seat pressure distribution information of the occupant seated on the seat are acquired from the seat position detecting means 36, the steering position detecting means 38, and the seat pressure sensor 40 (S14).

  After acquiring the above current posture information, the control means 28 of the control computer 14 operates the biological information detection means 10 (S16). The biological information detection means 10 converts the occupant's biological information into an electrical signal and outputs it as a biological information signal to the control computer 14. The control computer 14 performs signal processing of the biological information signal input in the signal processing unit 22.

  The biological information signal determination unit 24 determines whether the biological information signal is a signal that can appropriately perform a health check in the diagnosis unit 12 (S18). Whether or not the biological information signal is an appropriate signal is determined based on whether or not the signal-to-noise ratio of the signal, the disturbance of the signal, and the like are each equal to or less than an allowable value stored in advance in the control computer 14. These allowable values are determined by the diagnostic speed required for the in-vehicle health diagnostic apparatus 100, the performance of the control computer 14, and the like.

  If it is determined that the signal is an appropriate signal, the operation of the biological information detecting means 10 is continued (S20), and the diagnostic means 12 of the control computer 14 based on the biological information signal continuously output from the biological information detecting means 10 Continue to conduct health checkups for passengers.

  On the other hand, if it is determined that the signal is not an appropriate signal, the control means 28 compares the current posture with the normal posture derived in S12 to obtain the difference, and the current posture is determined from the normal posture. It is determined whether it is within the range (S22).

  If the difference is within the predetermined allowable range, the operation of the biological information detecting means 10 is continued (S24). Further, the biological information signal determination unit 24 determines whether or not the biological information signal is a signal that can appropriately perform a health check in the diagnosis unit 12 (S26).

  If it is determined that the signal is an appropriate signal, the operation of the biological information detecting means 10 is continued (S28), and the diagnostic means 12 of the control computer 14 based on the biological information signal continuously output from the biological information detecting means 10 Continue to conduct health checkups for passengers.

  If it is not determined that the signal is an appropriate signal for a predetermined period, an accurate health check can no longer be performed, so the control means 28 detects the signal of the biological information detection means 10 or the health check operation of the diagnosis means 12. Is stopped (S30).

  On the other hand, when the difference exceeds the predetermined allowable range, the control computer 14 acquires operation instruction information from the selection switch that is the posture adjustment operation instruction acquisition means 34 (S32). In this embodiment, as an example of the posture adjustment operation instruction, it is a selection instruction of a normal posture instruction that is a batch operation to a normal posture or an intermediate position instruction that is an operation to an intermediate position. The posture adjustment operation instruction is not limited to the collective operation to the normal posture or the operation to the intermediate position, and any position between the current posture and the normal posture may be instructed.

  It is determined whether the instruction acquired by the attitude adjustment operation instruction acquisition means 34 is a normal attitude instruction (S34). In the case of the normal posture instruction, the posture control means 32 operates the seat actuator 42 and the steering actuator 44 to correct the posture of the occupant to the normal posture (S36). After the occupant's posture is corrected to the normal posture, the biological information detection by the biological information detecting means 10 is continued (S38), and the health check is continued.

  On the other hand, when the acquired posture adjustment operation instruction is an intermediate position instruction, the posture control means 32 operates the seat actuator 42 and the steering actuator 44 to move the seat position and the steering wheel position to the intermediate position, thereby Is brought closer to the normal posture from the current posture (S40). After the seat position and the steering wheel position are moved to the intermediate position, the biological information is detected by the biological information detection means 10 (S42).

  Next, in this new posture, the biological information signal determination unit 24 determines again whether the biological information signal is a signal that allows the diagnosis unit 12 to appropriately perform a health check (S44). If it is determined that the signal is an appropriate signal, the operation of the biological information detecting means 10 is continued (S46), and the diagnostic means 12 of the control computer 14 based on the biological information signal continuously output from the biological information detecting means 10 A passenger's health checkup is continued (S46).

  On the other hand, when it is determined that the signal acquired in the posture by the movement to the first intermediate position is not an appropriate signal, the control means 28 determines the occupant's posture between the new current posture and the normal posture. The seat actuator 42 and the steering actuator 44 are operated to move the seat position and the steering wheel position to the second intermediate position so that the intermediate posture is obtained (S40). In this manner, the loop from S40 to S44 is repeated in the biological information signal determination unit 24 until it is determined that the biological information signal is a signal that allows the diagnosis unit 12 to appropriately perform a health check.

  By the above operation, the biological information detection means 10 can detect good biological information suitable for the health check by the diagnosis means 12, improve the accuracy of the health check, and give an instruction to correct the posture of the occupant. Since it is acquired, the occupant's discomfort can be reduced.

  In the above embodiment, in order to derive the normal posture, in addition to the height and weight of the occupant, physique information such as sitting height, arm length, gender, hip size, etc. is acquired. It is the height of the occupant that has the greatest influence on the positional relationship with the biological information detection means 10. Therefore, it is also preferable to simply obtain the normal posture, which is a posture suitable for the biological information detecting means 10 to detect the biological information, simply based on the height information of the passenger.

  FIG. 4 is a flowchart showing an operation flow of the in-vehicle health diagnostic apparatus 100 that derives the normal posture from only the height information and changes the posture to the normal posture.

  First, the physique information acquisition unit 16 acquires only the height information of the occupant (S50), and the normal posture deriving unit 26 derives the normal posture from the height information (S52). Here, the normal posture is stored in the storage device of the control computer 14 as a normal position specified by the seat slide position, the reclining angle, and the height adjuster position.

  Next, the position information of the current seat of the occupant seated on the seat is acquired from the seat position detecting means 36 (S54). The seat position information is acquired as the current seat position specified by the seat slide position, the reclining angle, and the height adjuster position.

  Next, the posture control means 32 determines whether the current reclining angle of the acquired current seat position information is within a predetermined allowable range from the normal reclining angle of the normal position (S56). If the current reclining angle is not within the predetermined allowable range from the normal reclining angle at the normal position, the seat actuator 42 is operated to adjust the reclining angle to the normal reclining angle at the normal position (S58).

  When it is determined that the reclining angle is the normal reclining angle that is the normal position, or after the normal reclining angle is obtained by the adjustment, the posture control unit 32 determines that the current height adjuster position of the acquired current seat position information is the normal position. It is determined whether it is within a predetermined allowable range from the normal height adjuster position (S60). If the current height adjuster position is not within the predetermined allowable range from the normal height adjuster position of the normal position, the seat actuator 42 is operated to adjust the height adjuster position to the height adjuster position that is the normal position (S62).

  When it is determined that the height adjuster position is a normal height adjuster position that is the normal position, or after the height adjustment position is set to the normal height adjuster position by the adjustment, the posture control means 32 determines that the current slide position of the acquired current sheet position information is the normal position. It is determined whether the position is within a predetermined allowable range from the normal slide position (S64). When the current slide position is not within the predetermined allowable range from the normal slide position of the normal position, the seat actuator 42 is operated to adjust the slide position to the slide position which is the normal position (S66).

  By the above operation, the sheet position becomes a normal posture that is suitable for the biological information detecting unit 10 to detect the biological information, and the biological information detecting unit 10 starts detecting the biological information signal (S68).

  According to this embodiment, since the physique information stored in the control computer 14 can be small, the capacity of the storage device can be reduced.

It is a functional block diagram of the on-vehicle health diagnostic apparatus 100 of the present invention. 5 is a flowchart for explaining the operation of the in-vehicle health diagnostic apparatus 100. 3 is a flowchart for explaining the operation of the in-vehicle health diagnostic apparatus 100, and is a flowchart for explaining an operation subsequent to FIG. It is a flowchart which shows the operation | movement flow of the vehicle-mounted health diagnostic apparatus 100 which derives | leads-out a normal posture only from height information and changes a posture into a normal posture.

Explanation of symbols

10 biological information detection means, 12 diagnostic means, 14 control computer, 16 physique information acquisition means, 18 current posture information acquisition means, 20 posture adjustment means, 22 signal processing unit, 24 biological information signal determination means, 26 normal posture derivation means, 28 control means, 30 signal processing section control means, 32 attitude control means, 34 attitude adjustment operation instruction acquisition means, 36 seat position detection means, 38 steering position detection means, 40 seat pressure sensor, 42 seat actuator, 44 steering actuator, 100 In-vehicle health diagnostic equipment.

Claims (20)

A biological information detecting means provided on the steering wheel for detecting biological information of an occupant seated on the seat and outputting a biological information signal;
Diagnosing means for diagnosing the health condition of the occupant based on the biological information signal;
Physique information acquisition means for acquiring physique information of the occupant;
Based on the physique information, the biological information detection means obtains normal posture deriving means for obtaining a normal posture that is a posture of an occupant suitable for detecting biological information, and posture information for specifying the occupant's sitting posture. Current posture information acquisition means;
Posture adjusting means for adjusting the posture of the occupant;
Attitude control means for controlling the attitude adjustment means;
With
The posture control means obtains a difference between the current posture and the normal posture, and when the difference is not included in a predetermined allowable range, the posture adjustment means makes the posture of the occupant close to the normal posture. An on-vehicle health diagnostic apparatus characterized by controlling A biological information detecting means provided on the steering wheel for detecting biological information of an occupant seated on the seat and outputting a biological information signal;
Diagnosing means for diagnosing the health condition of the occupant based on the biological information signal;
Physique information acquisition means for acquiring physique information of the occupant;
Normal posture deriving means for obtaining a normal posture, which is a posture of an occupant suitable for the biological information detection means to detect biological information based on the physique information, and an attitude adjustment means for adjusting the posture of the occupant;
Attitude control means for controlling the attitude adjustment means;
A biological information signal determination unit that determines whether the biological information signal output from the biological information detection unit is a signal that can be appropriately diagnosed in the diagnostic unit;
With
The posture control means controls the posture adjustment means so that the posture of the occupant approaches the normal posture when the biological information signal is determined not to be a signal that can be diagnosed appropriately by the biological information signal determination means. An on-vehicle health diagnostic apparatus characterized by: The in-vehicle health check device according to claim 2,
The posture control unit controls the posture adjustment unit so that the posture of the occupant approaches the normal posture until the biological information signal determination unit determines that the biological information signal is a signal that can be appropriately diagnosed. An on-vehicle health diagnostic apparatus characterized by the above. In the in-vehicle health diagnostic device according to any one of claims 1 to 3,
The posture adjusting means is
A seat actuator provided on the seat for changing at least one of a slide position, a reclining angle, and a height adjuster position of the seat, or provided on the steering wheel support, and a telescopic position and a tilt position of the steering wheel. It is a steering actuator for changing at least one of these, The vehicle-mounted health diagnostic apparatus characterized by the above-mentioned. The in-vehicle health diagnosis device according to any one of claims 1 to 4,
Posture adjustment operation instruction acquisition means for acquiring, from the occupant, an instruction to approach the occupant's posture to the normal posture by the posture adjustment means;
The on-vehicle health diagnosis apparatus, wherein the posture control unit controls the posture adjustment unit in accordance with an instruction acquired by the posture adjustment operation instruction acquisition unit. In the in-vehicle health check device according to claim 5,
The instruction acquired by the posture adjustment operation instruction acquisition unit includes an intermediate position instruction. When the intermediate position instruction is acquired, the posture control unit determines that the posture of the occupant is intermediate between the current posture and the normal posture. An on-vehicle health diagnostic apparatus, wherein the posture adjusting means is controlled so as to be an intermediate posture. A biological information detecting means provided on the steering wheel for detecting biological information of an occupant seated on the seat and outputting a biological information signal;
A diagnostic means for diagnosing the health condition of the occupant based on the biological information signal, comprising a signal processing unit that performs signal processing of the biological information signal;
Physique information acquisition means for acquiring physique information of the occupant;
Based on the physique information, the biological information detection means obtains normal posture deriving means for obtaining a normal posture that is a posture of an occupant suitable for detecting biological information, and posture information for specifying the occupant's sitting posture. Current posture information acquisition means;
Control means for controlling the biological information detecting means or the diagnostic means;
With
The control unit obtains a difference between the current posture and the normal posture, and stops the operation of the biological information detection unit or the diagnostic unit when the difference is not included in a predetermined allowable range. An on-vehicle health diagnostic device. A biological information detecting means provided on the steering wheel for detecting biological information of an occupant seated on the seat and outputting a biological information signal;
Diagnosing means for diagnosing the health condition of the occupant based on the biological information signal;
A signal processing unit arranged between the biological information detecting means and the diagnostic means for performing signal processing of the biological information signal;
Signal processing unit control means for controlling the signal processing unit;
Physique information acquisition means for acquiring physique information of the occupant;
Based on the physique information, the biological information detection means obtains normal posture deriving means for obtaining a normal posture that is a posture of an occupant suitable for detecting biological information, and posture information for specifying the occupant's sitting posture. Current posture information acquisition means;
With
The in-vehicle health diagnosis apparatus, wherein the signal processing unit control means obtains a difference between the current posture and the normal posture and changes a signal processing parameter in the signal processing unit based on the difference amount. In the on-vehicle health diagnosis device according to any one of claims 1 to 8,
The current posture information acquisition means is provided on the seat, and is provided on the steering wheel support portion, seat position detection means for detecting at least one of a slide position, a reclining angle, and a height adjuster position of the seat. A vehicle-mounted health comprising at least one of steering position detecting means for detecting at least one of a telescopic position and a tilt position of a wheel, and a seat pressure sensor for detecting a seat pressure distribution of the occupant. Diagnostic device. The in-vehicle health check device according to claim 9,
The normal posture obtained by the normal posture deriving means includes a normal seat position in which at least one of the seat slide position, reclining angle, and height adjuster position is specified, and a normal seat in which the seat pressure distribution of the occupant is specified. An on-vehicle health diagnostic apparatus characterized by being identified by at least one of pressure, or a normal steering wheel position in which at least one of a telescopic position and a tilt position of the steering wheel is identified. A biological information detecting step of detecting biological information of an occupant seated on the seat and outputting a biological information signal by means of biological information detecting means provided on the steering wheel;
A diagnostic step of diagnosing the health condition of the occupant based on the biological information signal;
A physique information acquisition step of acquiring the physique information of the occupant;
A normal posture deriving step for obtaining a normal posture, which is a posture of an occupant suitable for the biological information detection means to detect biological information, based on the physique information;
A current posture information acquisition step of acquiring posture information for specifying the sitting posture of the occupant;
A posture comparison step for obtaining a difference between the current posture and the normal posture;
In the posture comparison step, when the difference is not included in a predetermined allowable range, a posture adjustment step of operating posture adjusting means for adjusting the posture of the occupant to bring the posture of the occupant closer to the normal posture When,
An on-vehicle health checkup method comprising: A biological information detecting step of detecting biological information of an occupant seated on the seat and outputting a biological information signal by means of biological information detecting means provided on the steering wheel;
A diagnostic step of diagnosing the health condition of the occupant based on the biological information signal;
A physique information acquisition step of acquiring the physique information of the occupant;
A normal posture deriving step for obtaining a normal posture, which is a posture of an occupant suitable for the biological information detection means to detect biological information, based on the physique information;
A biological information signal determination step for determining whether the biological information signal is a signal that can be appropriately diagnosed in the diagnosis step;
In the biological information signal determination step, when it is determined that the biological information signal is not a signal that can be appropriately diagnosed in the diagnosis step, the posture adjustment means for adjusting the posture of the passenger is operated, A posture adjustment step for bringing the posture closer to the normal posture;
An on-vehicle health checkup method comprising: The on-vehicle health checkup method according to claim 12,
The posture adjustment step operates the posture adjustment means until the biological information signal is a signal that can be diagnosed appropriately in the biological information signal determination step to bring the posture of the occupant closer to the normal posture. An on-vehicle health diagnosis method characterized by the above. The in-vehicle health check method according to any one of claims 11 to 13,
In the posture adjustment step, the operation is performed to bring the occupant's posture closer to the normal posture in order to change at least one of a slide position, a reclining angle, and a height adjuster position of the seat. A vehicle-mounted health diagnosis method comprising: a seat actuator, or a steering actuator provided on the steering wheel support portion for changing at least one of a telescopic position and a tilt position of the steering wheel. The in-vehicle health check method according to any one of claims 11 to 14,
A posture adjustment operation instruction acquisition step of acquiring from the occupant an instruction on how to approach the normal posture from the current posture in the posture adjustment step;
In the posture adjustment step, the vehicle health checkup method is characterized in that the current posture approaches the normal posture in accordance with the instruction acquired in the posture adjustment operation instruction acquisition step. The in-vehicle health check method according to claim 15,
The instruction acquired from the occupant in the posture adjustment operation instruction acquisition step includes an intermediate position instruction. When the intermediate position instruction is acquired, in the posture adjustment step, the occupant's posture is the current posture and the normal posture. An in-vehicle health diagnosis method, wherein the current posture is brought closer to the normal posture so as to be an intermediate posture that is intermediate between the current posture and the normal posture. A biological information detecting step of detecting biological information of an occupant seated on the seat and outputting a biological information signal by means of biological information detecting means provided on the steering wheel;
A diagnostic step of diagnosing the health condition of the occupant based on the biological information signal;
A physique information acquisition step of acquiring the physique information of the occupant;
A normal posture deriving step for obtaining a normal posture, which is a posture of an occupant suitable for detecting biological information in the biological information detection step, based on the physique information;
A current posture information acquisition step of acquiring posture information for specifying the sitting posture of the occupant;
A posture comparison step for obtaining a difference between the current posture and the normal posture;
In the posture comparison step, when the difference is not included in a predetermined allowable range, a function stop step for stopping the biometric information detection in the biometric information detection step or the health check in the diagnostic step;
An on-vehicle health checkup method comprising: A biological information detecting step of detecting biological information of an occupant seated on the seat and outputting a biological information signal by means of biological information detecting means provided on the steering wheel;
Performing a signal processing on the biological information signal, and diagnosing a health condition of the occupant based on the biological information signal;
A physique information acquisition step of acquiring the physique information of the occupant;
A normal posture deriving step for obtaining a normal posture, which is a posture of an occupant suitable for detecting biological information in the biological information detection step, based on the physique information;
A current posture information acquisition step of acquiring posture information for specifying the sitting posture of the occupant;
A signal processing parameter changing step for obtaining a difference between the current posture and the normal posture, and changing a signal processing parameter in the signal processing based on the difference amount;
An on-vehicle health checkup method comprising: The in-vehicle health check method according to any one of claims 11 to 18,
In the current posture information acquisition step, the seating posture of the occupant is provided in the seat, and a seat position detecting unit that detects at least one of a slide position, a reclining angle, and a height adjuster position of the seat, the steering wheel support At least one of a steering position detecting means for detecting at least one of a telescopic position and a tilt position of the steering wheel and a seat pressure sensor for detecting a seat pressure distribution of the occupant. An on-vehicle health checkup method characterized by the above. The in-vehicle health checkup method according to claim 19,
The normal posture derived in the normal posture derivation step is a normal seat position in which at least one of a seat slide position, a reclining angle, and a height adjuster position is specified, and a seat pressure distribution of the occupant is specified. A vehicle health checkup method characterized by being specified by at least one of a seating pressure, a normal steering wheel position in which at least one of a telescopic position and a tilt position of the steering wheel is specified.

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