CN212148555U - A smart car seat headrest with automatic height adjustment - Google Patents

Abstract

The utility model discloses an intelligent vehicle seat headrest with automatic height adjustment. The intelligent vehicle seat headrest with automatic height adjustment comprises a camera, an infrared sensor, a seat reference position sensor and a movable headrest. The headrest is installed on the back of the car seat through a transmission device, the camera and the infrared sensor are arranged in front of the car seat, and the seat reference position sensor is installed in the middle of the side of the back of the car seat. The utility model solves the problem that the height of the existing car seat headrest cannot be adjusted automatically.

Description

A smart car seat headrest with automatic height adjustment

technical field

The embodiments of the utility model relate to the field of auto parts, in particular to a headrest of an intelligent car seat with automatic height adjustment.

Background technique

The position of the headrest of a car seat has a great impact on passenger safety. People of different heights need to adjust the height of the headrest when riding. If the headrest is adjusted too low, it may cause whiplash injury during rear-end collision and hurt the cervical vertebrae; when the headrest is in a high position, such as the high headrest of the passenger seat, it will affect the driver's vision when turning his head to observe the side, and will also affect the middle and rear. Row passengers observe the front view; the middle and rear headrests are too high, which will interfere with the driver's view of the rear of the car from the interior rearview mirror, posing a safety hazard.

There is currently a lack of car seat headrests on the market that can automatically adjust the height according to the passenger's head position and automatically lower to the lowest position when no one is riding.

The existing published patent is a seat headrest control device (CN202106880U), which aims to lower the rear headrest when reversing, so as to expand the driver's field of vision, and there is a danger of rear-end collision when reversing. The automatic adjustment state of the car seat patent (CN205737035U) only records the positions of different drivers after adjusting the seat, and realizes the adjustment through the seat memory function, which is only limited to the driver's seat, and is not actively adjusted. The self-adjusting method and system of the seat headrest (CN108058630A) is to adjust the height of the headrest by judging the position of the head by detecting the pressure center of the contact area of the passenger's head through the pressure sensor on the headrest by actively leaning on the headrest of the passenger. If the passenger does not actively touch the head to the headrest, the adjustment function cannot be achieved, which is relatively passive. A seat system, a vehicle and a method for adjusting the height of a headrest (CN108312928A) describe the function of actively detecting the height of the passenger's head, but it does not have another function of the patent, which is to automatically lower the height when no one is detected and the car is locked. Not the driver's seat.

Utility model content

To this end, the embodiments of the present invention provide an intelligent car seat headrest with automatic height adjustment, so as to solve the problem that the existing car seat headrest cannot automatically adjust the height.

In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:

The embodiment of the present utility model discloses an intelligent car seat headrest with automatic height adjustment. The intelligent car seat headrest with automatic height adjustment includes: a camera, an infrared sensor, a seat reference position sensor and a movable headrest , the headrest is installed on the car seat back through the transmission device, the camera and the infrared sensor are arranged in front of the car seat, the seat reference position sensor is installed in the middle of the side of the car seat back, the infrared sensor and The seat reference sensor is connected to the central processing unit.

Further, the camera is installed on the steering wheel and/or the instrument panel of the passenger in the front row of the car, and the camera in the rear row of the car is installed in the interior of the ceiling or the position of the B-pillar of the car.

Further, the infrared sensor is arranged adjacent to the position of the camera, the camera detects whether someone is sitting on the seat and identifies the center position of the human head, and the infrared sensor detects the distance L1 from the passenger's head.

Further, the seat reference position sensor is installed at the middle position of the seat back side, the seat reference position sensor reads the height H1 from the center of the headrest to the seat reference position sensor, and the infrared sensor can detect the difference between the seat reference position sensor and the seat reference position sensor. The relative distance between L2.

Further, the central processor can calculate the relative height H2 between the head center and the seat reference position according to the measured head center position angle α and the distances between L1 and L2.

Further, the camera and the infrared sensor are connected with a central controller, the central controller is connected with the transmission device of the headrest, and the headrest is adjusted through the transmission device so that the height H1 from the center of the headrest to the seat reference position sensor is the same as the height H1 of the headrest. The relative height H2 between the center and the seat reference position is the same, so that the center height of the headrest can be adjusted to adapt to the human head.

The embodiments of the present utility model have the following advantages:

The utility model discloses an intelligent car seat headrest with automatic height adjustment. A camera is used to detect whether someone is sitting on the car seat, at the same time, the center of the head of the human body is identified, and the position of the picture captured by the camera where the center of the head is located is detected by the camera. Judging the connection between the center of the head and the infrared sensor and the included angle α between the seat reference height position and the connection line of the infrared sensor, the infrared sensor detects the distance L1 from the human head, and detects the distance L2 from the seat reference position sensor. The seat reference position sensor can read its height H1 to the center of the headrest. The detected information is sent to the central processing unit, and the height H2 between the head center and the seat reference position sensor can be calculated through the above two sets of distance parameters L1 and L2 and the formed angle α. Thereby, the height position H1 of the headrest is adjusted through the central controller to make it fit correctly with the head of the human body. At the same time, when it is detected that there is no one on the non-driver's seat, the headrest is automatically retracted to increase the driver's field of view and increase the safety factor of the driving process. When the car is locked, the non-driver's seat headrest is automatically lowered to lowest position.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that are required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, other implementation drawings can also be obtained according to the extension of the drawings provided without creative efforts.

The structures, proportions, sizes, etc. shown in this specification are only used to cooperate with the contents disclosed in the specification, so as to be understood and read by those who are familiar with the technology, and are not used to limit the conditions that the present invention can be implemented. The technical substantive significance, the modification of any structure, the change of the proportional relationship or the adjustment of the size, without affecting the effect that the utility model can produce and the purpose that can be achieved, should still fall within the scope disclosed in the present utility model. The technical content must be within the scope of coverage.

1 is a structural diagram of a headrest of a smart car seat with automatic height adjustment provided by an embodiment of the present invention;

2 is a flow chart of adjusting the driver's seat headrest of a smart car seat headrest with automatic height adjustment according to an embodiment of the present invention;

Fig. 3 is a non-driver's seat headrest adjustment flow chart of an automatic height-adjusting intelligent car seat headrest provided by an embodiment of the present utility model;

FIG. 4 is a flow chart of adjusting the headrest after locking the headrest of a smart car seat with automatic height adjustment according to an embodiment of the present invention.

In the picture: 1-camera, 2-infrared sensor, 3-seat reference position sensor, 4-headrest.

Detailed ways

The embodiments of the present invention will be described below by specific specific embodiments. Those who are familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are of the present invention. Some examples, but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Example

The present embodiment discloses an automatic height-adjusting smart car seat headrest. The automatically height-adjusting smart car seat headrest includes: a camera 1, an infrared sensor 2, a seat reference position sensor 3, and a movable headrest 4. The headrest 4 is installed on the car seat back through the transmission device, the camera 1 and the infrared sensor 2 are arranged in front of the car seat, and the seat reference position sensor 3 is installed on the side of the car seat back. In the middle, the infrared sensor 2 and the seat reference sensor are connected to the central processing unit.

Camera 1 is installed on the steering wheel and/or the front passenger's instrument panel in the front row of the car, and camera 1 in the rear row of the car is installed in the interior of the roof or at the position of the B-pillar of the car; infrared sensor 2 is arranged adjacent to camera 1, and the infrared sensor is connected to the camera. The position is adjacent, the camera detects whether someone is sitting on the seat and recognizes the center position of the human head, and the infrared sensor detects the distance L1 to the passenger's head. The seat reference position sensor is installed in the middle position of the side of the seat back. The seat reference position sensor reads the height H1 from the center of the headrest to the seat reference position sensor, and the infrared sensor can detect the relative position between it and the seat reference position sensor. Distance L2.

Referring to Fig. 1, the camera 1 first detects whether there is a person on the seat, and determines that there is no one, then automatically lowers the headrest 4 to the lowest position to expand the driver's field of vision; judging that there is a person, recognizes the center position of the passenger's head, and uses the infrared sensor 2 to detect it. The relative distance L1 from the head of the human body, the infrared sensor 2 detects the relative distance L2 between it and the seat reference position, and the central processor calculates the included angle α through the position of the camera at the center of the passenger's head, and then according to The two groups of distances are measured to calculate the height H2 between the center of the human head and the seat reference position, and the calculation result is sent to the central controller, and the headrest is adjusted through the transmission device to make the headrest center to the seat reference position sensor. Height H1 and the center of the head The relative height H2 from the seat reference position is the same, so that the headrest 4 can be fitted to the correct position of the human head to ensure safety. After locking the car, automatically lower all headrests of the non-driver's seat to the lowest position. This embodiment can realize automatic adjustment of the position of the seat headrest 4, ensure that the driver's field of vision is maximized, and improve the safety factor during driving.

Although the present utility model has been described in detail above with general description and specific embodiments, some modifications or improvements can be made on the basis of the present utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not departing from the spirit of the present invention belong to the scope of protection of the present invention.

Claims (6)

1. An intelligent car seat headrest with automatic height adjustment is characterized in that, the intelligent car seat headrest with automatic height adjustment comprises: a camera, an infrared sensor, a seat reference position sensor and a movable headrest, so The headrest is installed on the car seat back through the transmission device, the camera and the infrared sensor are arranged in front of the car seat, the seat reference position sensor is installed in the middle of the side of the car seat back, the infrared sensor and the seat The reference sensor is connected to the central processing unit. 2. The intelligent car seat headrest with automatic height adjustment according to claim 1, wherein the camera is installed on the steering wheel and/or the co-pilot instrument panel in the front row of the car, and the camera in the rear row of the car is The camera is installed in the interior of the roof or in the B-pillar position of the car. 3. The intelligent car seat headrest with automatic height adjustment according to claim 1, wherein the infrared sensor is arranged adjacent to the position of the camera, and the camera detects whether someone is sitting on the seat and recognizes the head of the human body At the center of the head, the infrared sensor detects the distance L1 to the passenger's head. 4. The intelligent car seat headrest with automatic height adjustment according to claim 1, wherein the seat reference position sensor is installed in the middle position of the side of the seat back, and the seat reference position sensor reads the head The height H1 from the center of the pillow to the seat reference position sensor, the infrared sensor can detect the relative distance L2 from the seat reference position sensor. 5. The intelligent car seat headrest with automatic height adjustment according to claim 1, wherein the central processing unit can calculate the distance between the two groups of distances L1 and L2 according to the measured head center position angle α and L2. The relative height H2 from the center of the head to the seat reference position. 6 . The intelligent car seat headrest with automatic height adjustment according to claim 1 , wherein the camera and the infrared sensor are connected with a central controller, and the central controller is connected with the transmission device of the headrest. 7 . , adjust the headrest through the transmission device so that the height H1 from the center of the headrest to the seat reference position sensor is consistent with the relative height H2 between the head center and the seat reference position, so as to adjust the height of the headrest center to adapt to the human head.

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