CN109367440B - Seat adjusting method and seat adjusting device - Google Patents
Seat adjusting method and seat adjusting device Download PDFInfo
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- CN109367440B CN109367440B CN201811161989.9A CN201811161989A CN109367440B CN 109367440 B CN109367440 B CN 109367440B CN 201811161989 A CN201811161989 A CN 201811161989A CN 109367440 B CN109367440 B CN 109367440B
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- headrest
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- 238000000034 method Methods 0.000 title claims abstract description 51
- 230000007246 mechanism Effects 0.000 claims abstract description 86
- 230000008569 process Effects 0.000 claims abstract description 33
- 238000005452 bending Methods 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims description 19
- 230000007257 malfunction Effects 0.000 abstract description 2
- 230000033001 locomotion Effects 0.000 description 20
- 230000009471 action Effects 0.000 description 11
- 230000036544 posture Effects 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 208000003443 Unconsciousness Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/0224—Non-manual adjustments, e.g. with electrical operation
- B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/0224—Non-manual adjustments, e.g. with electrical operation
- B60N2/02246—Electric motors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/0224—Non-manual adjustments, e.g. with electrical operation
- B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits
- B60N2/0268—Non-manual adjustments, e.g. with electrical operation with logic circuits using sensors or detectors for adapting the seat or seat part, e.g. to the position of an occupant
Abstract
The invention discloses a seat adjusting method and a seat adjusting device.A camera acquires a video image at a seat; respectively acquiring the pressure on a headrest, a backrest and a cushion; when the cushion pressure is larger than a set value, the seat is adjusted by image recognition and judgment when a person is present; wherein, the backrest angle is adjusted: when the pressure of the headrest is greater than a set value, the backrest rotates in the backward leaning direction; when the pressure of the headrest and the pressure of the backrest are simultaneously 0 and a person is not in a forward bending posture, the backrest rotates in a forward bending direction; seat translation regulation: when the video image identifies that the person on the seat is in a backward leaning posture and the pressure of the backrest is greater than a set value, the seat moves backwards for a set distance; when the video image identifies that the person on the seat is in the forward-bending posture and the pressure of the backrest is 0, the seat translation adjusting mechanism is controlled to move forwards for a set distance, the operations are repeated, and the intelligent adjustment of the seat is realized. The intelligent seat adjusting device realizes intelligent adjustment of the seat, does not malfunction, and can realize automatic adjustment of the seat in the driving process of the vehicle; the user can easily memorize and operate the device, and the device has strong practical value.
Description
Technical Field
The invention relates to a seat adjusting method, in particular to an intelligent adjusting method of an automobile seat and a seat adjusting device for realizing the method.
Background
Due to the different body shapes and the changing sitting postures of users, the position and the backrest angle of the seat have different requirements, and therefore, the seat needs to be adjusted. Especially for the automobile driver, the distance between the seat and the pedal has an important influence on the driving experience, and in order to ensure the driving safety and reduce the fatigue degree in the driving process, the proper seat position and the backrest angle need to be adjusted.
In the prior art, the adjustment modes of the seat generally include a manual mode and an electric mode. This approach requires the user to manipulate different handles or power switches to control the forward and backward movement of the seat and the forward pitch and backward pitch of the backrest, respectively. The above-mentioned adjustment cannot be made during driving for driving safety reasons.
In order to change the condition of adjusting the seat by manual operation, the chinese invention patent CN104260647A discloses an intelligent adjusting type electric seat for an automobile, which comprises a translation motor, an angle adjusting motor, a backrest pressure sensor, a cushion forward movement pressure sensor, a cushion backward movement pressure sensor, a controller and a timer; when the automobile electric seat is used, a user needs to start the automatic adjusting mode firstly and then sits on the seat, and the automobile electric seat can be used intelligently and automatically; when the user finishes the seat adjustment, the automatic adjusting mode needs to be closed first, and the vehicle can be driven. Wherein, the seat back operation process is: when the backrest pressure sensor detects that the rotating pressure applied to the backrest is larger than a set value, the controller sends an unlocking instruction to the backrest locker, the lock pin of the backrest locker is separated from the lock hole of the seat backrest, and the seat backrest is in a free state of rotating forwards and backwards; when the backrest pressure sensor detects that the rotating pressure applied to the backrest is greater than a set value and the rotating pressure continues to increase within a set time, the backrest pressure sensor gives a signal that the backrest rotates backwards to the controller, after the controller receives the signal that the backrest rotates backwards and is sent by the backrest pressure sensor, the controller immediately sends a working instruction to the backward rotating relay, the backward rotating relay immediately starts working, the angle adjusting motor rotates in the reverse direction as a result of the working of the backward rotating relay, and the seat backrest rotates backwards under the action of the reverse rotation of the adjusting motor; when the controller receives that the rotating pressure transmitted by the backrest pressure sensor is greater than a set value and the rotating pressure does not change within a set time, the controller sends a locking instruction to the backrest locker, and the backrest locker locks the backrest of the seat to prevent the rotation of the backrest of the seat; when the backrest pressure sensor detects that the rotating pressure applied to the backrest is larger than a set value and the rotating pressure is reduced within a set time, the backrest pressure sensor gives a backrest forward rotating signal to the controller, after the controller receives the backrest forward rotating signal transmitted by the backrest pressure sensor, the controller immediately gives a working instruction to the forward rotating relay, the forward rotating relay immediately starts working, the angle adjusting motor rotates forwards as a result of the working of the forward rotating relay, and the seat backrest rotates forwards under the action of the forward rotating of the adjusting motor; the translation operation process of the seat cushion is as follows: when the cushion backward movement pressure sensor detects that backward horizontal pressure applied to the cushion is larger than a set value, or when the cushion forward movement pressure sensor detects that forward horizontal pressure applied to the cushion is larger than a set value, the controller sends an unlocking instruction to the cushion locker, the lock pin of the cushion locker is separated from the lock hole of the seat cushion, and the seat cushion is in a free state of moving horizontally back and forth; when the cushion backward movement pressure sensor detects that backward horizontal pressure applied to the cushion is larger than a set value and the backward horizontal pressure continues to increase within a set time, the cushion backward movement pressure sensor gives a cushion backward movement signal to the controller, after the controller receives the cushion backward movement signal sent by the cushion backward movement pressure sensor, the controller immediately gives a work instruction to the backward translation relay, the backward translation relay immediately starts to work, the translation motor reversely rotates as a result of the work of the backward translation relay, and the seat cushion horizontally moves backward under the reverse rotation of the translation motor; when the controller receives that the backward horizontal pressure transmitted by the cushion backward movement pressure sensor is equal to a set value and the backward horizontal pressure is unchanged within a set time, or when the controller receives that the forward horizontal pressure transmitted by the cushion forward movement pressure sensor is equal to the set value and the forward horizontal pressure is unchanged within the set time, the controller sends a locking instruction to the cushion locker, and the cushion locker locks the seat cushion of the seat to prevent the seat cushion from horizontally moving; when the cushion forward movement pressure sensor detects that the forward horizontal pressure applied to the cushion is larger than a set value and the forward horizontal pressure continues to increase within a set time, the cushion forward movement pressure sensor gives a cushion forward movement signal to the controller, after the controller receives the cushion forward movement signal transmitted by the cushion forward movement pressure sensor, the controller immediately gives a work instruction to the forward translation relay, the forward translation relay immediately starts to work, the translation motor rotates forwards as a result of the work of the forward translation relay, and the seat cushion moves forwards and horizontally under the action of the forward rotation of the translation motor.
Above-mentioned technical scheme can realize the intelligent regulation of seat, but it has following defect: (1) the detection of the translation action is realized by respectively arranging a cushion forward-moving pressure sensor and a cushion backward-moving pressure sensor, the movement connection structure of the cushion is inevitably adjusted to detect the horizontal movement pressure on the cushion, the realization difficulty is increased, meanwhile, a user needs to provide the forward and backward acting force to express the translation requirement of the seat, and the control difficulty is also high; (2) in the technical scheme, a user is required to provide continuously increased pressure as a control signal, the control difficulty is high, and particularly in the process of backward leaning of the backrest, once the pressure is reduced, the backrest can turn forward, and the required control is obviously difficult to realize; (3) since each action corresponds to a sensor signal, the action is easy to generate misoperation and cannot be used in the driving process of the automobile, the comparison file also clearly shows that when the user finishes the adjustment of the seat, the automatic adjustment mode needs to be closed firstly, and the automobile can be driven.
Clearly, there is a need for improved intelligent seat adjustment methods that facilitate user manipulation.
Disclosure of Invention
The invention aims to provide a seat adjusting method, which realizes intelligent adjustment of a seat, avoids misoperation and ensures that the seat can be adjusted no matter a vehicle is in a stop state or a running state; another object of the invention is to provide a seat adjusting device for carrying out the method.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: a seat adjusting method is characterized in that a seat translation adjusting mechanism and a backrest rotation adjusting mechanism are arranged on a seat, and the seat adjusting method comprises the following steps:
(1) providing a camera facing to the seat, and acquiring a video image of the position of the seat;
(2) the headrest pressure sensor is arranged on the headrest, the backrest pressure sensor is arranged on the backrest, the cushion pressure sensor is arranged on the cushion, and the pressures on the headrest, the backrest and the cushion are respectively acquired;
(3) when the pressure value acquired by the cushion pressure sensor is larger than a set value, carrying out image recognition on a video image acquired by the camera, judging whether a person exists on the seat, starting a seat adjusting process if the person exists, and otherwise, repeating the step (3);
(4) the seat adjusting process comprises a backrest angle adjusting process and a seat translation adjusting process:
the backrest angle adjusting process comprises the following steps:
when the pressure value of the headrest pressure sensor is greater than the set value, the backrest rotation adjusting mechanism is controlled to enable the backrest to rotate in the backward leaning direction, and the rotation is stopped when the pressure value of the headrest pressure sensor is less than the set value;
when the pressure values of the headrest pressure sensor and the backrest pressure sensor are 0 at the same time and the video image identifies that the seat is not in a forward-bending posture, controlling the backrest rotation adjusting mechanism to enable the backrest to rotate in the forward-bending direction, and stopping rotating when the pressure value of the backrest pressure sensor is not 0;
the seat translation adjusting process comprises the following steps:
when the video image identifies that the person on the seat is in a backward leaning posture and the pressure value of the backrest pressure sensor is greater than a set value, controlling the seat translation adjusting mechanism to move backwards for a set distance;
when the video image identifies that the person on the seat is in a forward-bending posture and the pressure value of the backrest pressure sensor is 0, controlling the seat translation adjusting mechanism to move forwards for a set distance;
(5) and (5) repeating the steps (3) to (5) to realize intelligent adjustment of the seat.
Among the above-mentioned technical scheme, through the combination of camera and pressure sensor, realize the intelligent control to the seat, wherein, the setting of control value is confirmed according to user's conventional conditions, and when the user normally leaned on, the pressure value of back pressure sensor and headrest pressure sensor was all not greater than the setting value. When the backrest needs to be adjusted backwards, the head presses the headrest forcefully, and when the backrest needs to be adjusted forwards, a human body sits upright without leaning against the backrest; when the seat needs to be translated forwards, the human body bends forwards, and when the seat needs to be translated backwards, the human body bends backwards and presses the backrest with force. The actions can not occur during normal driving, so that misoperation can not occur, and the seat can be adjusted in a driving state; meanwhile, the actions are all one-time actions, so that the situation of continuous force application and the like does not exist, and the operation and the control are easy to realize.
According to the technical scheme, when the pressure value obtained by any one of the headrest pressure sensor, the backrest pressure sensor and the cushion pressure sensor exceeds a set value, the time exceeding the set value is monitored, and when the time exceeding the set value is shorter than the conventional operation time, it is judged that a driver has no intention to adjust and the seat adjusting process is not started. The normal operation time herein means at least a time required for the human body to normally operate consciously, for example, 0.5 seconds or more, and if the duration of the pressure exceeding the set value is very short (for example, 0.1 seconds or 0.2 seconds), it indicates that it is an impact force generated in the event of a collision, sudden braking, or the like of the vehicle, or is caused by an unconscious action of the driver. At this time, the seat adjusting process is not started, and the action of the driver is not influenced. In this process, the image of the die might be called at the same time to assist in determining the duration of the motion.
According to the preferable technical scheme, the camera adopts a double-lens camera, the image of one lens is identified, and the three states of the output seat are respectively empty, someone and an object; and recognizing the image of the other lens, and outputting the states of the person on the seat as a forward-bending state, a backward-bending state and a no-posture state respectively.
In order to achieve another object of the invention, the invention provides a seat adjusting device, which comprises a seat translation adjusting mechanism, a backrest rotation adjusting mechanism, a controller, a headrest pressure sensor arranged on a headrest, a backrest pressure sensor arranged on a backrest and a cushion pressure sensor arranged on a cushion, wherein the controller is provided with a camera arranged towards the seat; the signal output terminals of the camera, the headrest pressure sensor, the backrest pressure sensor and the cushion pressure sensor are respectively connected to the input port of the controller, and two output ports of the controller are respectively connected to the seat translation adjusting mechanism and the backrest rotation adjusting mechanism through the driving circuit.
In the technical scheme, the camera can be usually arranged on one side of the inside rear-view mirror, and can shoot the whole driver seat. The device adopts the adjusting method to control and adjust the seat, and intelligent adjustment can be realized.
According to the preferable technical scheme, the headrest pressure sensor, the backrest pressure sensor and the cushion pressure sensor are film patch type sensors. Therefore, the invention can conveniently realize the transformation of the existing vehicle type, can utilize the existing electric control seat, and does not need to change the seat structure for arranging the pressure sensor.
The headrest pressure sensor is embedded in the headrest sleeve and is positioned in the middle of the front surface of the headrest; the backrest pressure sensor is embedded in the backrest sleeve and is positioned in the middle of the front of the backrest; the cushion pressure sensor is embedded in the cushion cover and is positioned in the middle of the upper side of the cushion.
According to the preferable technical scheme, the camera is a single-lens camera or a double-lens camera.
In the technical scheme, the seat translation adjusting mechanism comprises a first adjusting motor, a first transmission mechanism and a translation mechanism, wherein the first transmission mechanism converts the rotating force of the first adjusting motor into the translation driving force of the translation mechanism to drive the seat to move forwards and backwards; the backrest rotation adjusting mechanism comprises a second adjusting motor, a second transmission mechanism and a rotating mechanism, and the second transmission mechanism outputs the rotating force of the second adjusting motor to the rotating mechanism to realize the rotation of the backrest. The transmission mechanism, the translation mechanism and the rotation mechanism can be realized by adopting the prior art. The adjusting motor can adopt a brush motor or a brushless motor.
The preferred technical scheme, the controller mainly comprises treater, 2 predrive chips and 2 full-bridge circuits, 2 output ports of treater control 2 predrive chips respectively, 2 predrive chips drive 2 full-bridge circuits respectively, and 2 full-bridge circuits are connected to first accommodate motor and second accommodate motor respectively, wherein, first accommodate motor with the second accommodate motor adopts brushless motor.
Or, the controller mainly comprises treater, 2 predrive chips and 2 half-bridge circuit, 2 output ports of treater control 2 predrive chips respectively, and 2 predrive chips drive 2 half-bridge circuit respectively, and 2 half-bridge circuit are connected to first accommodate motor and second accommodate motor respectively, first accommodate motor with the second accommodate motor adopts and has the brush motor.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. according to the invention, through the combination of the camera and the pressure sensor, the intelligent adjustment of the seat is realized, the misoperation is avoided, and the automatic adjustment of the seat can be realized in the vehicle running process;
2. under the condition of only adjusting the angle of the backrest and the front and back positions of the seat, the invention creatively introduces the headrest pressure sensor, thereby providing a plurality of controllable pressure combinations which are not coincident with the normal operation process and are used for giving adjusting signals of the seat, and the signals have better relevance with an adjusting object, so that a user can easily memorize and operate the adjusting object and has strong practical value;
3. the invention can filter signals caused by the intention of non-drivers to adjust the seat such as rapid acceleration, rapid braking, collision and the like by monitoring the overrun time when the pressure exceeds a set value, thereby ensuring that the adjusting system does not malfunction, not influencing the operation of the drivers and ensuring the running safety of the vehicle.
Drawings
FIG. 1 is a schematic block circuit diagram of a regulating device of an embodiment of the present invention;
FIG. 2 is a schematic diagram showing the layout of sensors in the embodiment;
FIG. 3 is a block diagram illustrating a backrest angle adjusting process according to an embodiment;
fig. 4 is a block diagram of the pan adjustment process in the embodiment.
Wherein: 1. a headrest; 2. a backrest; 3. a cushion; 4. a headrest pressure sensor; 5. a backrest pressure sensor; 6. cushion pressure sensor.
Detailed Description
The invention is further described with reference to the following figures and examples:
the first embodiment is as follows: referring to fig. 2, a seat adjusting device includes a seat translation adjusting mechanism, a backrest rotation adjusting mechanism, a controller, a camera (not shown in the figure) disposed toward the seat, and includes a headrest pressure sensor 4 disposed on a headrest 1, a backrest pressure sensor 5 disposed on the backrest 2, and a cushion pressure sensor 6 disposed on a cushion 3. The pressure sensors shown in the figures are only used for illustration, and can be arranged according to the actual seat situation and protected by a seat cover in the specific implementation.
The seat translation adjusting mechanism comprises a first brushless motor, a first transmission mechanism and a translation mechanism, wherein the first transmission mechanism converts the rotating force of the first brushless motor into the translation driving force of the translation mechanism to drive the seat to move forwards and backwards; the backrest rotation adjusting mechanism comprises a second brushless motor, a second transmission mechanism and a rotating mechanism, wherein the second transmission mechanism outputs the rotating force of the second brushless motor to the rotating mechanism to realize the rotation of the backrest. The transmission mechanism, the translation mechanism and the rotating mechanism can be realized by adopting the prior art, for example, the rotation of the motor is converted into translation by adopting a gear rack structure.
Referring to fig. 1, signal output terminals of the camera, the headrest pressure sensor, the backrest pressure sensor and the cushion pressure sensor are respectively connected to an input port of the controller, and two output ports of the controller are respectively connected to the seat translation adjusting mechanism and the backrest rotation adjusting mechanism through a driving circuit. In this embodiment, the controller mainly comprises treater, 2 predrive chips and 2 full-bridge circuits, 2 output ports of treater control 2 predrive chips respectively, and 2 predrive chips drive 2 full-bridge circuits respectively, and 2 full-bridge circuits are connected to first brushless motor and second brushless motor respectively.
When in use, the method comprises the following steps:
(1) acquiring a video image of the position of the seat by a camera facing the seat;
(2) the pressure on the headrest, the backrest and the cushion is respectively obtained by a headrest pressure sensor, a backrest pressure sensor and a cushion pressure sensor;
(3) when the pressure value acquired by the cushion pressure sensor is larger than a set value, carrying out image recognition on a video image acquired by the camera, judging whether a person exists on the seat, starting a seat adjusting process if the person exists, and otherwise, repeating the step (3);
(4) the seat adjusting process comprises a backrest angle adjusting process and a seat translation adjusting process:
referring to fig. 3, the backrest angle adjusting process is as follows:
when the pressure value of the headrest pressure sensor is greater than the set value, the backrest rotation adjusting mechanism is controlled to enable the backrest to rotate in the backward leaning direction, and the rotation is stopped when the pressure value of the headrest pressure sensor is less than the set value;
when the pressure values of the headrest pressure sensor and the backrest pressure sensor are 0 at the same time and the video image identifies that the seat is not in a forward-bending posture, controlling the backrest rotation adjusting mechanism to enable the backrest to rotate in the forward-bending direction, and stopping rotating when the pressure value of the backrest pressure sensor is not 0;
referring to fig. 4, the seat translation adjusting process is as follows:
when the video image identifies that the person on the seat is in a backward leaning posture and the pressure value of the backrest pressure sensor is greater than a set value, controlling the seat translation adjusting mechanism to move backwards for a set distance;
when the video image identifies that the person on the seat is in a forward-bending posture and the pressure value of the backrest pressure sensor is 0, controlling the seat translation adjusting mechanism to move forwards for a set distance;
(5) and (5) repeating the steps (3) to (5) to realize intelligent adjustment of the seat.
The above regulation process can be further expressed as follows:
the parameters are set as follows:
the headrest pressure sensor is S1:
no pressure S1=0x2,
the pressure exceeds the set value S1=0x1,
pressure less than setpoint S1=0x 0;
the backrest pressure sensor is S2:
no pressure S2=0x2,
the pressure exceeds the set value S2=0x1,
pressure less than setpoint S2=0x 0;
the cushion pressure sensor is S3:
no pressure S3=0x2,
the pressure exceeds the set value S3=0x1,
pressure less than setpoint S3=0x 0;
the camera is C1, adopts double-lens camera, is respectively:
C1_1：
no human or object =0x5 was detected,
human =0x4 was detected and,
the detected object =0x3,
C1_2：
front pitch attitude =0x2 is detected,
a supine posture =0x1 is detected,
no gesture =0x0 was detected.
The adjustment of the backrest is as follows:
(1) C1_1=0x4&S3=0x1,
if S1=0x1, the backrest rotates in the reclining direction;
if S1=0x0, the backrest stops rotating.
(2) C1_1=0x4&S3=0x1,
If S2=0x2 and C1_2 ≠ 0x2, then the backrest rotates in the forward pitch direction until S2=0x 0.
The adjustment of the seat translation is as follows:
(3) C1_1=0x4&S3=0x1,
if C1_2=0x1& S2=0x1, then the seat is moved backward a set distance (one step, which may be set according to the adjustment accuracy requirements);
(4) C1_1=0x4&S3=0x1,
if C1_2=0x2& S2=0x2, the seat moves forward a set distance (one step).
Thus, the present embodiment enables intelligent adjustment of the seat.
Example two: a seat adjusting device comprises a seat translation adjusting mechanism, a backrest rotation adjusting mechanism and a controller, and is provided with a camera arranged towards a seat, a headrest pressure sensor arranged on a headrest, a backrest pressure sensor arranged on the backrest and a cushion pressure sensor arranged on a cushion.
The seat translation adjusting mechanism comprises a first brush motor, a first transmission mechanism and a translation mechanism, wherein the first transmission mechanism converts the rotating force of the first brush motor into the translation driving force of the translation mechanism to drive the seat to move forwards and backwards; the backrest rotation adjusting mechanism comprises a second brush motor, a second transmission mechanism and a rotating mechanism, and the second transmission mechanism outputs the rotating force of the second brush motor to the rotating mechanism to realize the rotation of the backrest. The transmission mechanism, the translation mechanism and the rotating mechanism can be realized by adopting the prior art, for example, the rotation of the motor is converted into translation by adopting a gear rack structure.
In this embodiment, the signal output terminals of the camera, the headrest pressure sensor, the backrest pressure sensor, and the cushion pressure sensor are respectively connected to the input port of the controller, and two output ports of the controller are respectively connected to the seat translation adjusting mechanism and the backrest rotation adjusting mechanism through the driving circuit. In this embodiment, the controller mainly comprises a processor, 2 pre-driver chips and 2 half-bridge circuits, 2 output ports of the processor respectively control the 2 pre-driver chips, the 2 pre-driver chips respectively drive the 2 half-bridge circuits, and the 2 half-bridge circuits are respectively connected to the first brushless motor and the second brushless motor.
The adjustment control method of this embodiment is the same as that of the first embodiment.
Claims (10)
1. A seat adjusting method is characterized in that a seat translation adjusting mechanism and a backrest rotation adjusting mechanism are arranged on a seat, and the seat adjusting method comprises the following steps:
(1) providing a camera facing to the seat, and acquiring a video image of the position of the seat;
(2) the headrest pressure sensor is arranged on the headrest, the backrest pressure sensor is arranged on the backrest, the cushion pressure sensor is arranged on the cushion, and the pressures on the headrest, the backrest and the cushion are respectively acquired;
(3) when the pressure value acquired by the cushion pressure sensor is larger than a set value, carrying out image recognition on a video image acquired by the camera, judging whether a person exists on the seat, starting a seat adjusting process if the person exists, and otherwise, repeating the step (3);
(4) the seat adjusting process comprises a backrest angle adjusting process and a seat translation adjusting process:
the backrest angle adjusting process comprises the following steps:
when the pressure value of the headrest pressure sensor is greater than the set value, the backrest rotation adjusting mechanism is controlled to enable the backrest to rotate in the backward leaning direction, and the rotation is stopped when the pressure value of the headrest pressure sensor is less than the set value;
when the pressure values of the headrest pressure sensor and the backrest pressure sensor are 0 at the same time and the video image identifies that the seat is not in a forward-bending posture, controlling the backrest rotation adjusting mechanism to enable the backrest to rotate in the forward-bending direction, and stopping rotating when the pressure value of the backrest pressure sensor is not 0;
the seat translation adjusting process comprises the following steps:
when the video image identifies that the person on the seat is in a backward leaning posture and the pressure value of the backrest pressure sensor is greater than a set value, controlling the seat translation adjusting mechanism to move backwards for a set distance;
when the video image identifies that the person on the seat is in a forward-bending posture and the pressure value of the backrest pressure sensor is 0, controlling the seat translation adjusting mechanism to move forwards for a set distance;
(5) and (5) repeating the steps (3) to (5) to realize intelligent adjustment of the seat.
2. The seat adjustment method according to claim 1, characterized in that: when the pressure value obtained by any one of the headrest pressure sensor, the backrest pressure sensor and the cushion pressure sensor exceeds a set value, the time exceeding the set value is monitored, and when the time exceeding the set value is lower than the conventional operation time, the condition that a driver does not have the adjustment intention is judged, and the seat adjustment process is not started.
3. The seat adjustment method according to claim 1, characterized in that: the camera adopts a double-lens camera, identifies an image of one lens, and outputs three states of the seat, namely empty, someone and an object; and recognizing the image of the other lens, and outputting the states of the person on the seat as a forward-bending state, a backward-bending state and a no-posture state respectively.
4. The utility model provides a seat adjusting device, includes seat translation adjustment mechanism, back rotation adjustment mechanism, controller, its characterized in that: the headrest pressure sensor is arranged on the headrest, the backrest pressure sensor is arranged on the backrest, and the cushion pressure sensor is arranged on the cushion; the signal output terminals of the camera, the headrest pressure sensor, the backrest pressure sensor and the cushion pressure sensor are respectively connected to the input port of the controller, and two output ports of the controller are respectively connected to the seat translation adjusting mechanism and the backrest rotation adjusting mechanism through the driving circuit;
the controller is provided with a control program, and the control program comprises:
the backrest angle adjusting module:
when the pressure value of the headrest pressure sensor is greater than the set value, the backrest rotation adjusting mechanism is controlled to enable the backrest to rotate in the backward leaning direction, and the rotation is stopped when the pressure value of the headrest pressure sensor is less than the set value;
when the pressure values of the headrest pressure sensor and the backrest pressure sensor are 0 at the same time and the video image identifies that the seat is not in a forward-bending posture, controlling the backrest rotation adjusting mechanism to enable the backrest to rotate in the forward-bending direction, and stopping rotating when the pressure value of the backrest pressure sensor is not 0;
seat translation adjustment module:
when the video image identifies that the person on the seat is in a backward leaning posture and the pressure value of the backrest pressure sensor is greater than a set value, controlling the seat translation adjusting mechanism to move backwards for a set distance;
and when the video image identifies that the person on the seat is in the front-down posture and the pressure value of the backrest pressure sensor is 0, controlling the seat translation adjusting mechanism to move forwards for a set distance.
5. The seat adjustment apparatus of claim 4, wherein: the headrest pressure sensor, the backrest pressure sensor and the cushion pressure sensor are film patch type sensors.
6. The seat adjustment apparatus of claim 5, wherein: the headrest pressure sensor is embedded in the headrest sleeve and is positioned in the middle of the front surface of the headrest; the backrest pressure sensor is embedded in the backrest sleeve and is positioned in the middle of the front of the backrest; the cushion pressure sensor is embedded in the cushion cover and is positioned in the middle of the upper side of the cushion.
7. The seat adjustment apparatus of claim 4, wherein: the camera is a single-lens camera or a double-lens camera.
8. The seat adjustment apparatus of claim 4, wherein: the seat translation adjusting mechanism comprises a first adjusting motor, a first transmission mechanism and a translation mechanism, wherein the first transmission mechanism converts the rotating force of the first adjusting motor into the translation driving force of the translation mechanism to drive the seat to move forwards and backwards; the backrest rotation adjusting mechanism comprises a second adjusting motor, a second transmission mechanism and a rotating mechanism, and the second transmission mechanism outputs the rotating force of the second adjusting motor to the rotating mechanism to realize the rotation of the backrest.
9. The seat adjustment apparatus of claim 8, wherein: the controller mainly comprises treater, 2 pre-drive chips and 2 full-bridge circuits, 2 pre-drive chips are controlled respectively to 2 output ports of treater, and 2 full-bridge circuits are driven respectively to 2 pre-drive chips, and 2 full-bridge circuits are connected to first adjusting motor and second adjusting motor respectively, wherein, first adjusting motor with second adjusting motor adopts brushless motor.
10. The seat adjustment apparatus of claim 8, wherein: the controller mainly comprises treater, 2 pre-drive chips and 2 half-bridge circuit, 2 pre-drive chips are controlled respectively to 2 output ports of treater, and 2 half-bridge circuit are driven respectively to 2 pre-drive chips, and 2 half-bridge circuit are connected to first accommodate motor and second accommodate motor respectively, first accommodate motor with the second accommodate motor adopts and has the brush motor.
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| CN201811161989.9A CN109367440B (en) | 2018-09-30 | 2018-09-30 | Seat adjusting method and seat adjusting device |
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| CN201811161989.9A CN109367440B (en) | 2018-09-30 | 2018-09-30 | Seat adjusting method and seat adjusting device |
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| CN110843614B (en) * | 2019-11-30 | 2022-07-08 | 的卢技术有限公司 | Self-adaptive adjusting method and system for automobile seat |
| CN110949218A (en) * | 2019-12-23 | 2020-04-03 | 北京新能源汽车股份有限公司 | Seat headrest of vehicle and vehicle |
| CN111204268A (en) * | 2020-01-20 | 2020-05-29 | 恒大新能源汽车科技(广东)有限公司 | Vehicle and seat thereof |
| CN111839987A (en) * | 2020-07-29 | 2020-10-30 | 山东得知科技发展有限公司 | Induction type adjusting chair and adjusting method |
| CN112754467A (en) * | 2020-12-25 | 2021-05-07 | 常州福普生电子科技有限公司 | Multichannel pressure distribution measurement data acquisition device and use method thereof |
| US11858395B2 (en) | 2022-01-13 | 2024-01-02 | Toyota Research Institute, Inc. | Systems and methods for improving the adjustment of a vehicle headrest using gestures |
| US11760246B2 (en) | 2022-01-13 | 2023-09-19 | Toyota Research Institute, Inc. | Systems and methods for improving the adjustment of a vehicle headrest |
| CN115227062A (en) * | 2022-05-25 | 2022-10-25 | 南通思凯林家居有限公司 | Intelligent multifunctional sofa interconnection control method |
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