Movement input apparatus applied to steering apparatus and mobile control system using the same

• US 8,868,295 B2
• Filed: 11/18/2010
• Issued: 10/21/2014
• Est. Priority Date: 12/18/2009
• Status: Active Grant

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: Jeong, Ji Wook
• Primary Examiner(s): CHEN, SHELLEY
• Application Number:
  US12/949,569
• Publication Number:
  US 20110153163A1
• Time in Patent Office: 1,433 Days
• Field of Search: 701/42
• US Class Current: 701/41
• CPC Class Codes: B60W 2540/18 Steering angle
• CPC Class Codes: B60W 50/16 Tactile feedback to the driver, e.g. vibration or force feedback to the driver on the steering wheel or the accelerator pedal
• CPC Class Codes: B62D 1/046 Adaptations on rotatable parts of the steering wheel for accommodation of switches
• CPC Class Codes: B62D 1/06 Rims, e.g. with heating means; Rim covers B62D1/11 takes precedence
• CPC Class Codes: G08B 21/06 indicating a condition of sleep, e.g. anti-dozing alarms

Abstract

There is provided a movement input apparatus applied to a steering apparatus and a mobile control system using the same. In detail, the steering apparatus performing steering or adjusting functions includes: a movement input apparatus including a signal detector that is attached or embedded in a surface of a steering apparatus and uses a resistive conductive yarn to detect finger contact signals; an estimator that receives the finger contact signals detected in the signal detector to estimate a status of an operator; and a display unit that converts and displays the estimated movement of the operator into signals of a type able to be sensed by a user; an extractor that analyzes the status information transmitted from the transmitter to extract the operational signals of the user; a controller that generates and transmits control signals for external devices according to the extracted operational signals of the user.

Claims

1. A movement input apparatus, comprising:

a detector that is attached or embedded in a surface of a steering apparatus, the detector being configured to detect finger contact movement;

an estimator configured to receive information on the finger contact movement detected by the detector, analyze movement patterns, and estimate a condition of an operator using a result of the analysis of the movement patterns; and

an output unit configured to convert and output the analyzed movement patterns of the operator and the estimated condition of the operator into signals of a type that can be sensed by a user,

wherein the detector includes a resistive conductive yarn,

wherein the detector detects the finger contact movement that exerts a tensile or compressive force on the resistive conductive yarn in a longitudinal direction of the resistive conductive yarn, and

wherein the detector detects the finger contact movement by detecting a resistance value of the resistive conductive yarn and converts the finger contact movement into electric signals, the resistance value varying linearly based on expansion or contraction of a length of the resistive conductive yarn due to the tensile or compressive force exerted in the longitudinal direction of the resistive conductive yarn.

2. The movement input apparatus of claim 1, wherein the output unit is configured to convert the estimated status of the operator into at least one of image signals, voice signals, sound signals, and vibration signals.

3. The movement input apparatus of claim 1, further comprising a transmitter that transmits at least one of the information on the finger contact movement detected in the detector, information on the movement patterns of the operator analyzed in the estimator, and information on the status of the operator estimated in the estimator to external devices.

4. The movement input apparatus of claim 1, wherein the estimator and the output unit are embedded in the steering apparatus.

5. The movement input apparatus of claim 1, wherein the estimator includes:

an input unit configured to filter the movement patterns by using the information on the finger contact movement transmitted from the detector;

a pattern analyzer configured to analyze the movement patterns filtered in the input unit to determine whether the movement patterns of the operator are a normal pattern;

a grip searcher configured to search for a grip of the operator or a grip location of the operator when a change value of the movement patterns filtered in the input unit exceeds a specific value; and

a fatigue analyzer configured to synthesize a determination result of the pattern analyzer and a search result of the grip searcher to estimate a fatigue condition of the operator.

6. The movement input apparatus of claim 5, wherein the estimator further includes a transducer that converts output signals into analog to digital (A/D) signals.

13. The movement input apparatus of claim 1, wherein the detector is attached to the surface of the steering apparatus, and wherein the detector covers the surface of the steering apparatus.

14. The movement apparatus of claim 1, wherein the movement patterns comprise finger contact movement across a surface along a circumference of the steering apparatus, the finger contact movement causing a change in the length of the conductive yarn.

16. The movement apparatus of claim 1, wherein the resistive conductive yarn includes a first resistive conductive yarn and a second resistive conductive yarn,

wherein the first resistive conductive yarn is attached or embedded along a first portion of a circumference of the surface of the steering apparatus and the second resistive conductive yarn is attached or embedded along a second portion of the circumference of the surface of the steering apparatus, an end of the first resistive conductive yarn being disposed adjacent to an end of the second resistive conductive yarn, and

wherein a length of the first resistive conductive yarn expands when a length of the second resistive conductive yarn contracts, and the length of the first resistive conductive yarn contracts when the length of the second resistive conductive yarn expands.

7. A mobile control system, comprising:

a movement input apparatus including a detector that is attached or embedded in a surface of a steering apparatus, the detector being configured to detect finger contact movement, an estimator configured to receive information on the finger contact movement detected by the detector to analyze a movement pattern and estimate a condition of an operator using a result of the analysis of the movement pattern, and an output unit configured to convert the analyzed movement patterns of the operator and the estimated condition of the operator into signals of a type able to be sensed by a user and output the signals; and

a control device including an extractor configured to extract operator operation signals by analyzing at least one of information on the finger contact movement detected by the detector and transmitted from the movement input apparatus, information on operator movement patterns analyzed by the estimator, and information on an operator'"'"'s condition estimated by the estimator, and a controller configured to generate and transmit control signals for external devices according to the extracted operation signals of the operator,

wherein the detector detects the finger contact movement that exerts a tensile or compressive force on the resistive conductive yarn in a longitudinal direction of the resistive conductive yarn, and

wherein the detector is configured to detect the finger contact movement by detecting a resistance value of a resistive conductive yarn and converts the finger contact movement into electric signals, the resistance value varying linearly based on expansion or contraction of a length of the resistive conductive yarn due to the tensile or compressive force exerted in the longitudinal direction of the resistive conductive yarn.

8. The mobile control system of claim 7, wherein the output unit is configured to convert the estimated condition of the operator into at least one of image signals, voice signals, sound signals, and vibration signals.

9. The mobile control system of claim 7, further comprising a transmitter that transmits at least one of the information on the finger contact movement detected in the detector, the information on the movement patterns of the operator analyzed in the estimator, and the information on the status of the operator estimated in the estimator to the control device or external devices.

10. The mobile control system of claim 7, wherein the estimator and the display unit are embedded in the steering apparatus.

11. The mobile control system of claim 7, wherein the estimator includes:

an input unit configured to filter the movement patterns by using the information on the finger contact movement transmitted from the detector;

a pattern analyzer configured to analyze the movement patterns filtered in the input unit to determine whether the movement patterns of the operator are a normal pattern;

a grip searcher configured to search for a grip of the operator or a grip location of the operator when a change value of the movement patterns filtered in the input unit exceeds a specific value; and

a fatigue analyzer configured to synthesize a determination result of the pattern analyzer and a search result of the grip searcher to estimate a fatigue condition of the operator.

12. The mobile control system of claim 11, wherein the estimator further includes a transducer that converts output signals into analog to digital (A/D) signals.

15. The mobile control system of claim 7, wherein the movement patterns comprise finger contact movement across a surface along a circumference the steering apparatus, the finger contact movement causing a change in the length of the conductive yarn.