JP2005074162A - Physical condition measurement system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a physical condition measurement system which gives no sense of incompatibility when a driver gripping a steering wheel and can be manufactured at low cost by using conventionally existing parts. <P>SOLUTION: This physical condition measurement system is equipped with the steering wheel 10 having speed change switches 11, 12 which are to maneuver an automatic transmission in a manual mode and are formed of conductive members, a physical condition measurement means 21 which is connected to the speed change switches 11, 12 and receives/transmits signals from/to the speed change switches 11, 12 to measure the physical conditions of the driver based on the signals, and an informing means 25 which informs the driver of a measurement result measured by the physical condition measurement means 21. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a physical condition measurement system that measures the physical condition of an automobile driver.

2. Description of the Related Art Conventionally, there is a body state measurement system that detects a driver's physical state (states such as blood pressure, pulse, and body temperature) and determines whether or not the driver is in a healthy state. In a conventional system, a sensor that contacts the body is attached to a grip portion (annular portion) of a steering wheel, and a health condition of a driving driver is determined (see Patent Document 1).
JP 2002-166743 A

  However, in the conventional body condition measurement system described above, a sensor that contacts the driver's body is attached to the grip portion (annular portion) of the steering wheel. For this reason, the driver often feels uncomfortable when holding the steering wheel, and the driving feel deteriorates.

  In addition, since the parts must be attached to the grip portion (annular portion) of the steering wheel, the manufacturing is complicated and the manufacturing cost is high.

  The present invention has been made paying attention to such a conventional problem, and does not feel uncomfortable when the driver grasps the steering wheel, and uses the existing parts to make the manufacturing cost. It aims to provide an inexpensive body condition measurement system.

  The present invention solves the above problems by the following means. In addition, in order to make an understanding easy, although the code | symbol corresponding to embodiment of this invention is attached | subjected, it is not limited to this.

  The present invention has a shift switch (11, 12) for operating an automatic transmission in a manual mode, and the shift switch is connected to the shift switch and a steering wheel (10) formed of a conductive member. A body condition measuring means (21) for transmitting and receiving a signal from the shift switch and measuring the physical condition of the driver based on the signal; and a notifying means (25) for notifying a measurement result of the body condition measuring means. It is characterized by having.

  According to the present invention, an existing component (shift switch) is formed of a conductive member, and signals are transmitted and received from the component to measure the physical condition of the driver. , The driver does not feel uncomfortable when holding the steering wheel and does not deteriorate the driving feel. In addition, since the existing parts (shift switch) are used, the manufacturing cost can be reduced.

  Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings.

  FIG. 1 is a diagram showing an embodiment of a body condition measuring system according to the present invention.

  The steering wheel 10 has a first shift switch 11 and a second shift switch 12 for operating the automatic transmission in the manual mode on the support portion 13 of the steering wheel (see FIG. 3). The first shift switch 11 and the second shift switch 12 are formed of a conductive member such as metal and function as electrodes for measuring body fat. The first shift switch 11 and the second shift switch 12 are connected to the impedance measuring means 21.

  The impedance measuring means 21 supplies a weak constant current to the human body via the first shift switch 11 and the second shift switch 12, and measures the voltage of the closed circuit constituted by the impedance between both hands. The impedance measuring unit 21 includes a sine wave generation unit 21a, a constant current source 21b, an operation amplifier 21c, a bypass filter 21d, a detection unit 21e, and an A / D conversion unit 21f. The impedance measuring means 21 generates a constant current of a constant frequency (for example, a constant current of a frequency of 50 kHz and 500 μA) by the sine wave generation unit 21a and the constant current source 21b, and passes through the first shift switch 11 and the second shift switch 12. Supply to the human body and measure the voltage between both hands. The voltage is amplified by the operational amplifier 21c, rectified by the bypass filter 21d and the detection unit 21e, and digitally converted by the A / D conversion unit 21f.

  The body fat calculation CPU 22 receives body information such as the height, weight, sex and age of the person to be measured and a measurement start signal from the operation switch 23. If the input physical information is stored in the storage unit 24, the physical information can be easily called from the next time. The body fat calculation CPU 22 calculates the impedance from the voltage information measured by the impedance measuring means 21 and the constant current supplied from the constant current source 21b. The body fat calculation CPU 22 calculates the user's body fat mass and body fat percentage from the user's body information input to the operation switch 23 and the user's impedance.

  The body fat mass and body fat percentage thus obtained are displayed on the navigation screen 25 and can be confirmed by the user. Here, a display example of the navigation screen 25 is shown in FIG. By storing the history of measured values in the storage unit 24, the transition from the past can be displayed in a graph. In addition, the measurement values of a plurality of persons may be stored in the storage unit 24 and may be switched and displayed by operating the operation switch 23.

  The body fat calculation CPU 22 inputs an IGN / SW signal, an operation signal of the operation switch 23, and a select signal of the AT shift lever 33, and performs body fat measurement control. The specific control content will be described later.

  Further, the first shift switch 11 and the second shift switch 12 are connected to the transmission control CPU 32 via the shift signal blocking unit 31. The transmission control CPU 32 is based on the range signal of the AT shift lever 33 (based on the signals of the first shift switch 11 and the second shift switch 12 when the AT shift lever 33 selects the manual mode). Control the automatic transmission.

  FIG. 2 is a flowchart for explaining the control of the body condition measurement system.

  In step S1, if IGN / SW is ON, control after step S2 is started.

  In step S2, it is determined whether the operation switch 23 is ON / OFF. If the switch is turned on (if ON), the process proceeds to step S3. If the switch is not turned on (if OFF), the process proceeds to step S6.

  In step S3, it is determined whether or not the AT shift lever 33 is in the P range. That is, since body fat is not measured during running, it is determined in this step whether or not the AT shift lever 33 is in the P range.

  In step S4, the input circuit from the manual mode switch to the transmission control CPU is shut off to prevent shifting, and in step S5, body fat measurement is started.

  In step S6, the measurement is reset.

  In step S7, an input circuit from the manual mode switch to the transmission control CPU is connected.

(how to use)
FIG. 3 is a diagram for explaining the method of use.

  As shown in FIG. 3, the first shift switch 11 and the second shift switch 12 are disposed on the steering wheel support 13. Accordingly, it is possible to touch the first shift switch 11 and the second shift switch 12 in the same manner as the shift operation in the manual mode. Thus, body fat can be easily measured by touching the first shift switch 11 and the second shift switch 12.

  An example of the screen display at that time is shown in FIG. By displaying in this way, the transition of body fat from the past can be confirmed at a glance.

(effect)
In conventional body condition measurement systems, a sensor that contacts the driver's body is attached to the grip (annular part) of the steering wheel, so it often feels strange when the driver grips the steering wheel. It had an adverse effect on the feel. In addition, since the parts must be attached to the grip portion (annular portion) of the steering wheel, the manufacturing is complicated, and the manufacturing cost is high.

  However, in the present embodiment, a sensor that comes into contact with the driver's body is formed by forming the conventional parts (manual mode switches 11 and 12) on the support portion 13 of the steering wheel 10 with a conductive member such as metal. I am trying to use it. Therefore, it has become possible to provide a body condition measurement system that is easy to manufacture and inexpensive to manufacture. Moreover, since it is arrange | positioned at the support part 13 of the steering wheel 10, the uncomfortable feeling at the time of a driving | running does not arise and a driving feeling is not deteriorated.

  In recent years, the number of people who are concerned about their own body fat has increased regardless of age or gender due to the diet boom. In particular, many people who have a lot of driving opportunities tend to have a short walking time and often feel lack of exercise. According to the system of the present embodiment, people who have many opportunities to drive automobiles can easily measure body fat.

  In the present embodiment, body fat measurement is performed only when the vehicle is stopped (P range), and the shift signal is interrupted when measuring body fat. Therefore, body fat can be measured safely.

  The present invention is not limited to the embodiment described above, and various modifications and changes can be made within the scope of the technical idea, and it is obvious that these are equivalent to the present invention.

  For example, in the above-described embodiment, the measurement of the body fat state as an example of the physical state has been described. However, for example, blood pressure or the like may be measured.

  In the above-described embodiment, the navigation screen 25 is exemplified as means for notifying the body fat mass and the body fat percentage, but may be notified by voice or the like, for example.

It is a figure which shows one Embodiment of the physical condition measurement system by this invention. It is a flowchart explaining control of a physical condition measurement system. It is a figure explaining the usage method. It is a figure which shows the example of a screen display.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Steering wheel 11 1st speed change switch 12 2nd speed change switch 13 Steering wheel support part 21 Impedance measuring means (impedance measuring part)
22 body fat calculation CPU (body fat calculation unit)
23 Operation switch 24 Storage section (storage means)
25 Navigation screen (notification means)
31 Shift signal blocking unit (shift signal blocking means)
32 Transmission control CPU
33 AT shift lever Step S3 Range signal detection means

Claims (5)

A steering wheel having a shift switch for operating the automatic transmission in a manual mode, the shift switch formed of a conductive member;
Physical condition measuring means connected to the shift switch, transmitting and receiving signals from the shift switch, and measuring a driver's physical condition based on the signals;
A notifying means for notifying the measurement result of the physical condition measuring means;
A physical condition measurement system. The physical condition measuring means includes
An impedance measuring unit for measuring impedance between the shift switches;
Based on the impedance measured by the impedance measuring unit, a body fat calculating unit that calculates the body fat of the driver;
A body fat measuring means having
The body condition measuring system according to claim 1. A shift signal blocking means for blocking the shift signal of the shift switch when the body condition measuring means measures the physical condition of the driver;
The body condition measuring system according to claim 1 or 2, wherein Having a range signal detecting means for detecting a range signal of the automatic transmission;
The shift signal blocking means blocks the shift signal of the shift switch when the range signal is P range,
The physical condition measuring means measures the physical condition after blocking the shift signal by the shift signal blocking means;
The body condition measuring system according to any one of claims 1 to 3, wherein Storage means for storing the measurement value measured by the physical condition measurement means;
The notification means is a display that displays a transition from the past of the measurement value stored in the storage means.
The body condition measuring system according to any one of claims 1 to 4, wherein

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