Human condition monitoring and security controlling apparatus on a road-vehicle

• US 4,706,072 A
• Filed: 11/29/1984
• Issued: 11/10/1987
• Est. Priority Date: 11/30/1983
• Status: Expired due to Term

• Current Assignee: Aisin Seiki Co., Ltd. (Aisin Corp.)
• Original Assignee: Aisin Seiki Co., Ltd. (Aisin Corp.)
• Inventors: Ikeyama, Takeshi
• Primary Examiner(s): Rowland, James L.
• Assistant Examiner(s): Hofsass, Jeffery A.
• Application Number:
  US06/676,326
• Time in Patent Office: 1,076 Days
• Field of Search: 340/576, 340/575, 340/573, 128/702, 128/687, 128/666, 128/639
• US Class Current: 340/576
• CPC Class Codes: A61B 5/18 for vehicle drivers or machine operators
• CPC Class Codes: B60K 28/063 preventing starting of vehicles
• CPC Class Codes: B60W 2540/221 Physiology, e.g. weight, heartbeat, health or special needs
• CPC Class Codes: B60W 2540/223 Posture, e.g. hand, foot, or seat position, turned or inclined
• CPC Class Codes: B60W 2540/229 Attention level, e.g. attentive to driving, reading or sleeping

Abstract

There is provided an apparatus which decides the presence or absence of an anomaly by detecting the gripped state of a steering wheel by the driver steering a road-vehicle, or by measuring fluctuations in heart rate and heartbeat period of the driver, and which issues an alarm of "Take a rest", etc. or controls the vehicle speed to be lowered, if there occurs any anomaly. Detecting means is attached to a steering wheel, steering wheel cover or a band-shaped member. The detecting means comprises a plurality of reflection type optical sensors which are each composed of a light emitting element and one or more light receiving elements, and which are set in such proper arrangement and orientation as permitting detection in any of various conditions.

Claims

1. A human condition monitoring and security controlling apparatus on road vehicles having a steering wheel comprising:

a plurality of status detecting means, each means including an optical sensing means for generating an electric signal in accordance with whether or not said steering wheel of the road vehicle is firmly gripped, said optical status detecting means being disposed on the steering wheel with given intervals therebetween;

detection energizing means for energizing said status detecting means;

signal processing means for processing an electric signal from said status detecting means;

at least one security means carried by the road vehicle; and

electronic control means for monitoring information output from said signal processing means and for energizing said security means if any anomaly occurs wherein said electronic control means sequentially selects said light receiving means, detects differences in output signal level between every adjacent light receiving means, and specifies those light receiving means in accordance with said differences.

2. A human condition monitioring and security controlling apparatus on road vehicles according to claim 1 wherein said optical sensing means is comprised of a light emitting means and a light receiving means receiving light from the former.

3. A human condition monitoring and security controlling apparatus on road vehicles according to claim 2 wherein said light receiving means is disposed in the vicinity of said light emitting means to have its optical axis extending substantially in the same direction as that of said light emitting means.

4. A human condition monitoring and security controlling apparatus on road vehicless according to claim 2 wherein detection energizing means includes oscillation means for imparting periodic fluctuations to said light emitting means and wherein said electronic control means detects the magnitude of amplitude of an output signal from said light receiving means.

5. A human condition monitoring and security controlling apparatus on road vehicles according to claim 2 wherein said signal processing means includes a filter means.

6. A human condition monitoring and security controlling apparatus on road vehicles according to claim 1 wherein said security means carried by the road vehicle includes alarm sound generating means.

7. A human condition monitoring and security controlling apparatus on road vehicles according to claim 1 wherein said security means carried by the road vehicle includes speed regulating means for lowering the speed of the road vehicIe.

8. A human condition monitoring and security controlling apparatus on road vehicles having a steering wheel comprising:

a plurality of heartbeat detecting means each comprising at least one light emitting means and at least one light receiving means disposed in the vicinity of the light emitting means on said steering wheel, said detecting means being disposed with given intervals therebetween with the optical axes thereof extending above said steering wheel;

detection energizing means for energizing said heart beat detecting means;

signal processing means for processing an electric signal from said heartbeat detecting means;

at least one security means carried by said road vehicle; and

electronic control means for monitoring a heartbeat signal output from said signal processing means and for energizing said security means if any anomaly occurs wherein said electronic control means sequentially selects said light receiving means, detects differences in output signal level between every adjacent light receiving means, and specifies those light receiving means in accordance with said differences.

9. A human condition monitoring and security controlling apparatus on road vehicles according to claim 8 wherein said electronic control means calculates at least a value corresponding to fluctation in periods of the heartbeat signal and detects any anomaly in accordance with the value.

10. A human condition monitoring and security controlling apparatus on road vehicles according to claim 8 wherein said heartbeat detecting means is disposed on a steering wheel of the road vehicle.

11. A human condition monitoring and security controlling apparatus on road vehicles according to claim 8 wherein said heartbeat detecting means is mounted on a band shaped support member.

12. A human condition monitoring and security controlling apparatus on road vehicles according to claim 8 wherein said each heartbeat detecting means is comprised of light emitting means and a plurality of light receiving means arranged in the vicinity of said light emitting means to surround the same and to have their optical axes extending substantially in the same direction.

13. A human condition monitoring and security controlling apparatus on road vehicles according to claim 8 wherein said detection energizing means includes oscillation means for imparting period fluctuations to said light emitting means, and wherein said signal processing means includes heartbeat signal demodulating means for demodulating a modulated signal from said light receiving means.

14. A human condition monitoring and security controlling apparatus on road vehicles according to claim 8 wherein said signal processing means includes signal transmitting means for outputting an electric wave modulated with an electric signal from said light receiving means, and signal, receiving means for receiving said electric wave and demodulating the same to obtain the electric signal from said light receiving means.

15. A human condition monitoring and security controlling apparatus on road vehicles according to claim 14 wherein said detecting energizing means and said signal transmitting means are detachably secured to spokes of said steering wheel.

16. A human condition monitoring and security controlling apparatus on road vehicles comprising:

a plurality of heartbeat detecting means each comprising at least one ligth emitting means and at least one light receiving means disposed in the vicinity of the light emitting means;

detection energizing means for energizing said heart beat detecting means;

signal processing means for processing an electric signal from said heartbeat detecting means;

at least one security means carried by said road vehicle; and

electronic control means for monitoring a heartbeat signal output from said signal processing means and for energizing said security means if any anomaly occurs wherein said electronic control means sequentially selects said light receiving means, detects differences in output signal level between every adjacent light receiving means, and specifies those light receiving means in accordance with said differences.