CN210310139U

CN210310139U - Hand-off detection system for automobile steering wheel

Info

Publication number: CN210310139U
Application number: CN201921350908.XU
Authority: CN
Inventors: 朱启锋; 周士华; 蔡瑞森
Original assignee: Zhejiang Taikang Electronics Co ltd
Current assignee: Zhejiang Taikang Electronics Co ltd
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-04-14
Anticipated expiration: 2029-08-20

Abstract

A hand-off detection system for an automobile steering wheel comprises a master control module and a hand-feeling detection module, wherein the master control module is arranged in the steering wheel, the hand-feeling detection module is electrically connected with the master control module, a display module is arranged at a position, which is easy to observe, on the front surface of the steering wheel, and the display module is also electrically connected with the master control module; the hand feeling detection module comprises a plurality of sensing units, and the sensing units are regularly arranged at corresponding positions of the circumference of the steering wheel where the hand can be held to form different sensing areas, so that the device for detecting the hand-holding sufficient degree of the driver is formed. The utility model discloses a detection mode science of feeling utilizes the regional response signal of a plurality of different responses to synthesize intelligent judgement, detects out the abundant degree of holding, can accurately judge the contact gesture of steering wheel and driver's hand, avoids reporting missing the wrong report, can obviously help improving safe driving degree. And, the utility model discloses can be with the hand from the very audio-visual abundant demonstration of state openly at the steering wheel, make the driver in time discover to correct.

Description

Hand-off detection system for automobile steering wheel

The technical field is as follows: the utility model relates to a car driving safety monitoring equipment, especially car steering wheel's hand is from state detecting system.

Background art: for the safety of the driving process of the automobile, it is usually not suitable to leave the steering wheel with hands while driving. Technology capable of detecting the hands-off state of a steering wheel is available, and if the hands or one hand of the steering wheel are disengaged, a warning signal can be sent to remind a driver. However, in the prior art, when determining whether the steering wheel is in the hands-off state, generally, only sensing whether the circumferential profile of the steering wheel is in contact with a human body is performed, and if the steering wheel is not held by a hand, the hand is only lightly held on the steering wheel, even if the steering wheel is not in an incorrect driving posture such as a state that an arm is placed on the hand to contact with the steering wheel, the hand is not taken off, and the detection accuracy is not enough. In addition, in the prior art, only red and green light and other warning modes are generally adopted, and the warning modes are monotonous and not intuitive.

The invention content is as follows: not enough to prior art, the utility model provides a detect and judge accurately, warn obvious audio-visual car steering wheel hand from detecting system.

The utility model comprises a general control module arranged in the steering wheel and a hand feeling detection module electrically connected with the general control module, wherein a display module is arranged at the position which is easy to observe on the front side of the steering wheel, and the display module is also electrically connected with the general control module; the hand feeling detection module comprises a plurality of sensing units, and the sensing units are regularly arranged at corresponding positions of the circumference of the steering wheel where the hand can be held to form different sensing areas, so that the device for detecting the hand-holding sufficient degree of the driver is formed.

The utility model discloses a detection mode science of feeling utilizes the regional response signal of a plurality of different responses to synthesize intelligent judgement, detects out the abundant degree of holding, can accurately judge the contact gesture of steering wheel and driver's hand, avoids reporting missing the wrong report, can obviously help improving safe driving degree. And, the utility model discloses can be with the hand from the very audio-visual abundant demonstration of state openly at the steering wheel, make the driver in time discover to correct.

The invention is further described with reference to the following figures and examples.

Description of the drawings: fig. 1 is a schematic diagram of the main structure of the embodiment.

Fig. 2 is a rear view of fig. 1.

Fig. 3 is a schematic diagram of the distribution of the sensing area of the steering wheel.

Fig. 4 is an enlarged schematic view of a-a section of fig. 1.

Fig. 5 is a schematic view of an expanded structure of the hand feeling detection module.

Fig. 6 is a general block diagram of a system.

The specific implementation mode is as follows: as shown in fig. 1 to fig. 6, the master control module 2 is disposed in the steering wheel 1, and the hand feeling detection module 3 is electrically connected to the master control module 2. A display module 4 is arranged at the front easy-to-observe position of the steering wheel 1, and the display module 4 is also electrically connected with the master control module 2. The hand feeling detection module 3 comprises a plurality of sensing units 9, and the sensing units 9 are regularly arranged at corresponding positions of the circumference of the steering wheel 1 where the hand can be held to form different sensing areas 10, so that the device for detecting the hand holding full degree of the driver is formed.

The front, back and outer circumferential surfaces of the circumferential hand-grippable position of the steering wheel 1 generally belong to different sensing areas 10, respectively. When the steering wheel 1 is held correctly on the circumference, the front, back and outer circumferential surfaces of the hand-held position are all in contact with the hand at the same time, i.e. the sensing signals are generated by the corresponding sensing areas 10. If the hand is in an incorrect driving posture such as a light lap, a resting contact with the steering wheel 1, etc., the number and the positions of the sensing areas 10 generating the sensing signals are also different. The signal that the detection module of feeling 3 carried can be synthesized intelligent judgement by total control module 2, can accurately judge the hand contact state to output signal to display module 4 and openly produce the demonstration in steering wheel 1 and remind.

The display module 4 can include LCD display screen and RGB emitting diode, and the LCD display screen passes through the audio-visual abundant suggestion hand state of form such as icon during the demonstration, and RGB emitting diode can send the suggestion light of different colours.

In this embodiment, a vibration module 5 is further installed in the steering wheel 1, and the vibration module 5 is electrically connected to the general control module 2 to form a vibration prompting device. After the master control module 2 outputs the warning signal, the vibration module 5 can make the steering wheel 1 vibrate, and even if the driver does not pay attention to the observation of the display module 4, the driver can receive the warning through body touch.

Still install the heart rate detection module 6 of the total control module 2 of electricity connection in steering wheel 1, the department can be put to finger that this heart rate detection module 6's detection mouth 7 was arranged at steering wheel 1 back, can be very convenient like this go on the journey in-process and detect driver's heart rate, if have unusually, also can in time warn, further improve and drive the security.

In the embodiment, the switch group 8 is installed on the front surface of the steering wheel 1, and the switch group 8 is also electrically connected with the master control module 2. The switch group 8 can be used for adjusting parameters such as vibration intensity, display brightness and the like more conveniently. Because many steering wheels are integrated with steering wheel switches for controlling sound, light and the like, the switch group 8 can also be integrated as a part of the steering wheel switches, and the layout is more beautiful. In addition, the master control module 2 can also be arranged in a steering wheel switch, so that the space is saved, and the wiring is convenient.

Claims

1. The utility model provides a car steering wheel hand is from detecting system, is including setting up the detection module of feeling of the total control module and the electricity connection in the steering wheel, characterized in that: a display module (4) is arranged at the position, which is easy to observe, of the front face of the steering wheel (1), and the display module (4) is also electrically connected with the master control module (2); the hand feeling detection module (3) comprises a plurality of sensing units (9), and the sensing units (9) are regularly arranged at corresponding positions of the circumference of the steering wheel (1) where the hand can be held to form different sensing areas (10) to form a device for detecting the sufficient degree of the hand holding of a driver.

2. The hand-off detection system for a steering wheel of an automobile according to claim 1, characterized in that: the front, back and outer circumferential surfaces of the hand-held position of the circumference of the steering wheel (1) belong to different sensing areas (10).

3. The hand-off detection system for a steering wheel of an automobile according to claim 1 or 2, characterized in that: a vibration module (5) is further installed in the steering wheel (1), and the vibration module (5) is electrically connected with the master control module (2) to form a vibration prompting device.

4. The hand-off detection system for a steering wheel of an automobile according to claim 1 or 2, characterized in that: a heart rate detection module (6) electrically connected with the master control module (2) is further installed in the steering wheel (1), and a detection port (7) of the heart rate detection module (6) is arranged at a finger lap position behind the steering wheel (1); a switch group (8) is arranged on the front surface of the steering wheel (1), and the switch group (8) is also electrically connected with the master control module (2).

5. The hand-off detection system for a steering wheel of an automobile according to claim 3, characterized in that: a heart rate detection module (6) electrically connected with the master control module (2) is further installed in the steering wheel (1), and a detection port (7) of the heart rate detection module (6) is arranged at a finger lap position behind the steering wheel (1); a switch group (8) is arranged on the front surface of the steering wheel (1), and the switch group (8) is also electrically connected with the master control module (2).