CN113799667B - Automobile comfort level adjusting system and method based on Internet of things - Google Patents

Automobile comfort level adjusting system and method based on Internet of things Download PDF

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Publication number
CN113799667B
CN113799667B CN202111091924.3A CN202111091924A CN113799667B CN 113799667 B CN113799667 B CN 113799667B CN 202111091924 A CN202111091924 A CN 202111091924A CN 113799667 B CN113799667 B CN 113799667B
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China
Prior art keywords
headrest
seat
chair back
clutch
back body
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Application number
CN202111091924.3A
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Chinese (zh)
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CN113799667A (en
Inventor
姜秋洁
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Individual
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Individual
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Priority to CN202111091924.3A priority Critical patent/CN113799667B/en
Publication of CN113799667A publication Critical patent/CN113799667A/en
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Publication of CN113799667B publication Critical patent/CN113799667B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246Electric motors therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/0224Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246Electric motors therefor
    • B60N2/02253Electric motors therefor characterised by the transmission between the electric motor and the seat or seat parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/1605Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the cinematic
    • B60N2/161Rods
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/1635Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the drive mechanism
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B60N2/2213Gear wheel driven mechanism
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/64Back-rests or cushions
    • B60N2/66Lumbar supports
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/80Head-rests
    • B60N2/806Head-rests movable or adjustable
    • B60N2/809Head-rests movable or adjustable vertically slidable
    • B60N2/829Head-rests movable or adjustable vertically slidable characterised by their adjusting mechanisms, e.g. electric motors

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

The application relates to an automobile comfort level adjusting system based on the Internet of things, which comprises: the vehicle-mounted intelligent control system comprises an automobile body, an automatic adjusting seat, a vehicle-mounted gateway, a controller and a user terminal; the self-adjusting seat includes: headrest body, back of the chair body, waist lean on body, cushion body, separation and reunion actuating mechanism, headrest adjustment mechanism, waist lean on adjustment mechanism, elevation angle adjustment mechanism, seat elevating system, wind channel. According to the application, the headrest adjusting mechanism and the lumbar support adjusting mechanism are selectively driven by the clutch driving mechanism, so that the adjustment of two positions can be controlled by a single motor, the number of motors is reduced, and the equipment cost is reduced; through setting up forced induction strip, first ultrasonic wave distance sensor, second ultrasonic wave distance sensor, make automatically regulated seat automatic matching user's size, need not manual regulation, prevent the improper secondary injury that leads to of manual regulation, improved the degree of automation and the accurate degree of automatically regulated seat, strengthened the comfort level that the user used the car.

Description

Automobile comfort level adjusting system and method based on Internet of things
Technical Field
The application relates to the field of automobiles, in particular to an automobile comfort level adjusting system and an automobile comfort level adjusting method based on the Internet of things.
Background
The aging, excessive activity and overload bearing can accelerate the aging of the spine, and the strain change of the tissues such as vertebral bodies, nerves, intervertebral discs, ligaments, muscles and the like can cause neck, shoulder, waist and leg pain and even nerve damage, thereby influencing the working capacity and life quality. For the ordinary people, the problems with the longer life and the more common age of the people are often the most frequent reason for the most consultation of orthopedics outpatient service, and the most common reason is lumbar muscle strain. The existing electric automobile seat can damage the waist and neck of a driver when driving for a long time.
CN201811626869.1 discloses a new-type electric automobile seat, its technical scheme is for being provided with headrest case, cushion supporting box and cushion angle limit box, and this new-type electric automobile seat has following advantage: the headrest box, the back cushion supporting box and the back cushion angle limiting box can be adjusted to adapt to the height and the shape of different users.
But this new electric car seat also has the following drawbacks: the adjustment process relies on manual adjustment, has stronger subjectivity, and the user can not guarantee to adjust to suitable position, if adjust improperly, can cause more serious injury to user's waist neck.
Therefore, there is a need for an adjustment system that automatically adjusts the comfort of a car seat.
Disclosure of Invention
The application provides an automobile comfort degree adjusting system and an automobile comfort degree adjusting method based on the Internet of things, which aim to solve the problems that a traditional automobile seat depends on manual adjustment and is high in subjectivity.
The application provides an automobile comfort level adjusting system based on the Internet of things, which comprises an automobile body, an automatic adjusting seat, a vehicle-mounted gateway, a controller and a user terminal, wherein the automobile body is provided with a seat, the automatic adjusting seat is provided with a seat, and the seat is provided with a seat cover:
The self-adjusting seat includes: the seat comprises a headrest body, a chair back body, a lumbar support body, a cushion body, a clutch driving mechanism, a headrest adjusting mechanism, a lumbar support adjusting mechanism, an elevation angle adjusting mechanism, a seat lifting mechanism and an air duct; the clutch driving mechanism is arranged in the middle of the chair back body and is electrically connected with the controller; the headrest adjusting mechanism is arranged at the upper part of the chair back body, is positioned above the clutch driving mechanism, is matched with the clutch driving mechanism, is in driving connection with the headrest body and controls the headrest body to lift; the waist rest adjusting mechanism is arranged at the lower part of the chair back body, is positioned below the clutch driving mechanism, is matched with the clutch driving mechanism and is in driving connection with the waist rest body; the elevation angle adjusting mechanism is arranged at the joint of the chair back body and the cushion body, is in driving connection with the chair back body, controls the elevation angle of the chair back body and is electrically connected with the controller; the seat lifting mechanism is an electric push rod, is symmetrically arranged below the seat cushion body, is in driving connection with the seat cushion body, controls the seat cushion body to lift and is electrically connected with the controller; the air duct is arranged below the cushion body and is communicated with an air conditioning system of the automobile body;
the controller is in wireless connection with the vehicle-mounted gateway and is used for receiving and sending control signals; the user terminal is in wireless connection with the vehicle-mounted gateway and is used for receiving push messages and sending out instructions.
Further, the clutch driving mechanism includes: the clutch sliding rail is fixedly connected to the chair back body; the clutch sliding block is vertically arranged on the clutch sliding rail and is in sliding connection with the clutch sliding rail; the first electromagnet is arranged above the clutch slide block and is electrically connected with the controller; the second electromagnet is arranged below the clutch sliding block and is electrically connected with the controller; the connecting rod is horizontally arranged at the side part of the clutch sliding block, and one end of the connecting rod is fixedly connected with the clutch sliding block; the sleeve is arranged at the tail end of the connecting rod and is fixedly connected with the connecting rod; the transmission shaft is vertically arranged in the sleeve, is rotationally connected with the sleeve and is in clearance fit with the sleeve; the driven gear is sleeved on the transmission shaft and is in driving connection with the transmission shaft; the first face gear is arranged at the upper end of the transmission shaft and is in driving connection with the transmission shaft; the second face gear is arranged at the lower end of the transmission shaft and is in driving connection with the transmission shaft; the first motor is arranged at the side part of the transmission shaft, fixedly connected with the chair back body and electrically connected with the controller; the driving gear is sleeved on a first motor shaft of the first motor, is in driving connection with the first motor and is meshed with the driven gear; the transmission shaft is fixedly connected with the sleeve in the axial direction.
The transmission shaft is provided with a first limiting step and a second limiting step, the lower part of the first limiting step is in butt joint with the upper end face of the sleeve, and the upper part of the second limiting step is in butt joint with the lower end face of the sleeve.
The distance between the clutch driving mechanism and the headrest adjusting mechanism is equal to the distance between the first electromagnet and the clutch sliding block;
the distance between the clutch driving mechanism and the lumbar support adjusting mechanism is equal to the distance between the second electromagnet and the clutch sliding block;
The axial width difference between the driving gear and the driven gear is larger than the sum of the distances between the clutch slider and the first electromagnet and the second electromagnet.
By adopting the technical scheme, the first electromagnet and the second electromagnet can be electrified or disconnected respectively, so that the clutch driving mechanism can selectively drive the headrest adjusting mechanism or the lumbar support adjusting mechanism. When the first electromagnet is electrified and the second electromagnet is powered off, the sliding block is attracted to slide upwards to drive the sleeve to move upwards, so that the transmission shaft is driven to move upwards, and the first face gear is meshed with the third face gear; when the second electromagnet is electrified and the first electromagnet is powered off, the sliding block is attracted to slide downwards to drive the sleeve to move downwards, so that the transmission shaft is driven to move downwards, and the second face gear is meshed with the fourth face gear. The number of motors is reduced, the equipment cost is reduced, and the automation degree of the automatic adjustment seat is improved.
Further, the headrest adjusting mechanism includes: the rotating seat is arranged at the upper part of the headrest adjusting mechanism and is fixedly connected with the chair back body; the first rotating bracket is arranged at the lower part of the headrest adjusting mechanism and is fixedly connected with the chair back body; the upper end of the screw is rotationally connected with the rotating seat, and the middle of the screw is rotationally connected with the first rotating bracket; the third face gear is arranged at the lower end of the screw rod and is in driving connection with the screw rod; the nut is sleeved on the screw rod and is in driving connection with the screw rod through threads; the slide bar is vertically arranged at the upper part of the headrest adjusting mechanism and is fixedly connected with the chair back body; the headrest support is horizontally arranged on the upper part of the headrest adjusting mechanism, two ends of the headrest support are fixedly connected with the headrest body and the nut respectively, and the middle part of the headrest support is in sliding connection with the slide rod.
Through adopting above-mentioned technical scheme, when separation and reunion actuating mechanism and headrest adjustment mechanism drive connection, the third face gear is driven rotatory by first face gear to drive the screw rod and rotate, thereby drive the nut and reciprocate in vertical direction, drive headrest body promptly.
Further, the lumbar support adjustment mechanism includes: the second rotating bracket is arranged at the lower part of the lumbar support adjusting mechanism and is fixedly connected with the chair back body; the third rotating bracket is arranged at the upper part of the lumbar support adjusting mechanism and is fixedly connected with the chair back body; the lower end of the rotary rod is rotationally connected with the second rotary bracket, and the middle part of the rotary rod is rotationally connected with the third rotary bracket; the fourth side gear is arranged at the upper end of the rotary rod and is in driving connection with the rotary rod; the worm sleeve is sleeved at the middle part of the rotary rod and is in driving connection with the rotary rod; the worm wheel is arranged at the side part of the worm sleeve, fixedly connected with the chair back body and meshed with the worm sleeve; one end of the rotating rod is rotationally connected with the chair back body, and the other end of the rotating rod is rotationally connected with the waist rest body; the sliding sleeve is sleeved on the rotating rod and is in sliding connection with the rotating rod; and the stay bar is arranged between the sliding sleeve and the worm wheel, one end of the stay bar is rotationally connected with the sliding sleeve, and the other end of the stay bar is fixedly connected with the worm wheel.
Through adopting above-mentioned technical scheme, when separation and reunion actuating mechanism and waist lean on adjustment mechanism drive connection, fourth face gear is driven rotatoryly by the second face gear, drives the revolving rod and rotates, and the worm cover on the revolving rod drives the turbine and rotates to drive the vaulting pole and rotate, make the waist lean on the upper and lower removal.
Further, the elevation angle adjusting mechanism includes: the second motor is arranged at the lower part of the elevation angle adjusting mechanism and is electrically connected with the controller; the rotating wheel is arranged above the second motor and is in driving connection with the second motor; the lug is arranged at the edge of the rotating wheel and is fixedly connected with the rotating wheel; the swing rod is arranged above the convex block, and one end of the swing rod is rotationally connected with the convex block; the rack is arranged below the chair back body and is rotationally connected with the other end of the swinging rod through a pin shaft; the rack bracket is arranged at the tail end of the rack and is in sliding connection with the rack; the elevation angle gear is arranged at the lower part of the chair back body, fixedly connected with the chair back body and meshed with the rack.
Through adopting above-mentioned technical scheme, when the second motor rotates, the runner drives and rotates the swing rod of being connected with the lug and swing on the runner circumference to drive the rack and remove in the horizontal direction, drive elevation angle gear rotation promptly, make the back of the chair body elevation angle change.
Further, the method further comprises the following steps: the pressure sensing strip is flexible and soft, is arranged in the middle of the surface of the chair back body and is in wireless connection with the vehicle-mounted gateway; the first ultrasonic distance sensor is arranged right above the automatic adjusting seat, fixedly connected with the top of the automobile body and wirelessly connected with the vehicle-mounted gateway; the second ultrasonic distance sensor is arranged right above the headrest body, fixedly connected with the top of the automobile body and wirelessly connected with the vehicle-mounted gateway; the fingerprint identification device is arranged on a door of the automobile body and is in wireless connection with the vehicle-mounted gateway; the first ultrasonic distance sensor and the second ultrasonic distance sensor are consistent in horizontal height.
An automobile comfort level adjusting method based on the Internet of things comprises the following steps:
Step one, adjusting the height of a seat, enabling a user to sit in the seat for automatic adjustment, and controlling the electric push rod to extend or retract by a controller until the first ultrasonic distance sensor detects that the distance between the first ultrasonic distance sensor and the head of the user reaches a set value, and stopping working of the electric push rod;
Step two, lumbar support adjustment, wherein the back of a user clings to the chair back body, the controller controls the first motor to rotate reversely at a low speed, the second electromagnet is electrified to attract the clutch sliding block to slide downwards, the clutch driving mechanism is in driving connection with the lumbar support adjustment mechanism, and the lumbar support body is controlled to rotate downwards to be separated from the surface of the chair back body; at the moment, the pressure sensing strip detects the pressure applied to the chair back body and marks the position with the minimum pressure; the controller controls the first motor to rotate positively and drives the lumbar support body to rotate upwards until the pressure value at the marked position is maximum;
Step three, headrest adjustment, wherein the controller controls the first motor to reversely rotate at a low speed, the first electromagnet is electrified to attract the clutch sliding block to slide upwards, the clutch driving mechanism is in driving connection with the headrest adjusting mechanism to control the headrest to move up and down, and the headrest is stopped when the difference between the distance between the first ultrasonic distance sensor and the head of a user and the distance between the second ultrasonic distance sensor and the top of the headrest body reaches a set value;
Step four, mode input, namely recording the adjustment steps of the mechanisms from the step one to the step three into a vehicle-mounted gateway, and carrying out identity recognition by different users through a fingerprint recognition device on a vehicle door;
Step five, mode switching, wherein a user enters the automobile, and the user terminal performs seat mode selection to adjust the automatic adjusting seat to the exclusive mode of the user in advance.
Further, when a user needs to rest, a rest instruction is input through the user terminal, the vehicle-mounted gateway receives signals and transmits the signals to the controller, the controller controls the second motor to run at a set angle, the elevation gear is driven to rotate forward, and the chair back body is leaned backwards;
when a user leaves the automobile, the user inputs an automobile-leaving instruction through the user terminal, the controller controls the second motor to operate at a set angle to drive the elevation gear to rotate reversely, the chair back body tilts forwards, and the anti-theft state is started.
By adopting the technical scheme, when a user needs to rest, the chair back body can be laid down and laid down, so that the comfort level of the user is improved; after leaving the car, the chair back body leans forward, and the thief can not normally seat, has improved theftproof ability and security of car.
In summary, the application has the following beneficial technical effects:
1. The clutch driving mechanism selectively drives the headrest adjusting mechanism and the lumbar support adjusting mechanism, so that a single motor can control the adjustment of two positions, the number of motors is reduced, and the equipment cost is reduced;
2. The pressure sensing strip, the first ultrasonic distance sensor and the second ultrasonic distance sensor are matched, so that the automatic adjusting seat is matched with the body shape of a user automatically, manual adjustment is not needed, secondary injury caused by improper manual adjustment is prevented, the degree of automation and the degree of accuracy of the automatic adjusting seat are improved, and the comfort degree of the user in using an automobile is enhanced;
3. Through logging the regulation steps of different users into the vehicle-mounted gateway, the automatic regulation seat can be regulated to a special mode of the user before the user enters the vehicle, so that the waiting time during use is reduced, and the use convenience of the user is improved.
Drawings
Fig. 1 is a schematic diagram of an automobile comfort level adjusting system based on the internet of things according to an embodiment of the application.
Fig. 2 is a partial enlarged view of an automatic adjustment seat of an automobile comfort adjustment system based on the internet of things according to an embodiment of the application.
Fig. 3 is a partial enlarged view of a clutch driving mechanism of an automobile comfort level adjusting system based on the internet of things according to an embodiment of the application.
Fig. 4 is a partial enlarged view of a headrest adjusting mechanism of an automobile comfort adjusting system based on the internet of things according to an embodiment of the application.
Fig. 5 is a partial enlarged view of a lumbar support adjusting mechanism of an automobile comfort adjusting system based on the internet of things according to an embodiment of the application.
Fig. 6 is a partial enlarged view of an elevation angle adjusting mechanism of an automobile comfort adjusting system based on the internet of things according to an embodiment of the application.
Fig. 7 is a logic diagram of an automobile comfort level adjusting method based on the internet of things according to an embodiment of the application.
Reference numerals illustrate:
An automobile body 1,
The automatic adjusting seat 2, the headrest body 21, the backrest body 22, the lumbar support body 23, the cushion body 24, the air duct 241,
Clutch driving mechanism 25, first motor 2501, driving gear 2502, driven gear 2503, transmission shaft 2504, first limit step 2504a, second limit step 2504b, first face gear 2505, second face gear 2506, sleeve 2507, connecting rod 2508, clutch slider 2509, slide rail 2510, first electromagnet 2511, second electromagnet 2512, and second electromagnet 2504a,
The headrest adjusting mechanism 26, a rotation seat 261, a first rotation bracket 262, a screw 263, a third face gear 264, a nut 265, a slide bar 266, a headrest bracket 267, a second rotation bracket,
Lumbar support adjusting mechanism 27, second rotating bracket 271, third rotating bracket 272, rotating lever 273, fourth face gear 274, worm sleeve 275, worm wheel 276, rotating lever 277, sliding sleeve 278, stay 279,
Elevation angle adjusting mechanism 28, second motor 281, turning wheel 282, bump 283, swing lever 284, pin 285, rack 286, rack support 287, elevation angle gear 288,
Seat lifting mechanism 29, electric push rod 291,
The vehicle-mounted gateway 3, the controller 4, the user terminal 5, the pressure sensing strip 6, the first ultrasonic distance sensor 7, the second ultrasonic distance sensor 8 and the fingerprint identification device 9.
Detailed Description
The following detailed description of the embodiments of the application, such as the shape and construction of the components, the mutual positions and connection relationships between the components, the roles and working principles of the components, the manufacturing process and the operating and using method, etc., is provided to assist those skilled in the art in a more complete, accurate and thorough understanding of the inventive concept and technical solution of the present application. For convenience of description, the directions of the present application are referred to as directions shown in the drawings.
Referring to fig. 1-7, an automobile comfort level adjusting system based on internet of things comprises an automobile body 1, an automatic adjusting seat 2, an on-board gateway 3, a controller 4 and a user terminal 5:
The self-adjusting seat 2 includes: the headrest body 21, the seatback body 22, the lumbar support body 23, the cushion body 24, the clutch driving mechanism 25, the headrest adjusting mechanism 26, the lumbar support adjusting mechanism 27, the elevation angle adjusting mechanism 28, the seat lifting mechanism 29 and the air duct 241; the clutch driving mechanism 25 is arranged in the middle of the chair back body 22 and is electrically connected with the controller 4; the headrest adjusting mechanism 26 is arranged at the upper part of the chair back body 22, is positioned above the clutch driving mechanism 25, is matched with the clutch driving mechanism 25, is in driving connection with the headrest body 21, and controls the headrest body 21 to lift; the lumbar support adjusting mechanism 27 is arranged at the lower part of the chair back body 22, is positioned below the clutch driving mechanism 25, is matched with the clutch driving mechanism 25, and is in driving connection with the lumbar support body 23; the elevation angle adjusting mechanism 28 is arranged at the joint of the seat back body 22 and the seat cushion body 24, is in driving connection with the seat back body 22, controls the elevation angle of the seat back body 22, and is electrically connected with the controller 4; the seat lifting mechanism 29 is an electric push rod 291, is symmetrically arranged below the seat cushion body 24, is in driving connection with the seat cushion body 24, controls the seat cushion body 24 to lift and is electrically connected with the controller 4; the air duct 241 is arranged below the cushion body 21 and is communicated with an air conditioning system of the automobile body 1;
the controller 4 is in wireless connection with the vehicle-mounted gateway 3 and is used for receiving and sending control signals; the user terminal 5 is wirelessly connected with the vehicle-mounted gateway 3 and is used for receiving push messages and sending out instructions.
The clutch driving mechanism 25 includes: the clutch sliding rail 2510 is fixedly connected to the chair back body 22; clutch slider 2509, vertically disposed on clutch rail 2510, in sliding connection with clutch rail 2510; a first electromagnet 2511 disposed above the clutch slider 2509 and electrically connected to the controller 4; a second electromagnet 2512 disposed below the clutch slider 2509 and electrically connected to the controller 4; a connecting rod 2508 horizontally arranged on the side of the clutch slide 2509, one end of which is fixedly connected with the clutch slide 2509; a sleeve 2507 disposed at the end of the connecting rod 2508 and fixedly connected to the connecting rod 2508; a drive shaft 2504 vertically disposed within the sleeve 2507, rotatably coupled to the sleeve 2507 and in clearance fit with the sleeve 2507; driven gear 2503, cup jointed on drive shaft 2504, connect with drive shaft 2504 drive; a first face gear 2505 disposed on the upper end of the transmission shaft 2504 and drivingly connected to the transmission shaft 2504; a second face gear 2506 disposed at the lower end of the transmission shaft 2504 and drivingly connected to the transmission shaft 2504; the first motor 2501 is arranged at the side part of the transmission shaft 2504, fixedly connected with the chair back body 22 and electrically connected with the controller 4; a driving gear 2502 which is sleeved on the shaft of the first motor 2501, is in driving connection with the first motor 2501 and is meshed with the driven gear 2503; the drive shaft 2504 is fixedly connected to the sleeve 2507 in the axial direction.
The transmission shaft 2504 is provided with a first limiting step 2504a and a second limiting step 2504b, the lower portion of the first limiting step 2504a is abutted to the upper end face of the sleeve 2507, and the upper portion of the second limiting step 2504b is abutted to the lower end face of the sleeve 2507.
The distance between the clutch driving mechanism 25 and the headrest adjusting mechanism 26 is equal to the distance between the first electromagnet 2511 and the clutch slider 2509;
the distance between the clutch driving mechanism 25 and the lumbar support adjusting mechanism 27 is equal to the distance between the second electromagnet 2512 and the clutch slider 2509;
the difference in axial width between the driving gear 2502 and the driven gear 2503 is greater than the sum of the distances between the clutch slider 2509 and the first and second electromagnets 2511 and 2512.
The headrest adjusting mechanism 26 includes: a rotation seat 261 which is arranged at the upper part of the headrest adjusting mechanism 26 and fixedly connected with the chair back body 22; the first rotating bracket 262 is arranged at the lower part of the headrest adjusting mechanism 26 and fixedly connected with the chair back body 22; the upper end of the screw 263 is rotationally connected with the rotating seat 261, and the middle part of the screw is rotationally connected with the first rotating bracket 262; the third face gear 264 is arranged at the lower end of the screw 263 and is in driving connection with the screw 263; the nut 265 is sleeved on the screw 263 and is in driving connection with the screw 263 through threads; the slide bar 266 is vertically arranged at the upper part of the headrest adjusting mechanism 26 and is fixedly connected with the chair back body 22; the headrest bracket 267 is horizontally arranged on the upper part of the headrest adjusting mechanism 26, two ends of the headrest bracket are respectively fixedly connected with the headrest body 21 and the nut 265, and the middle part of the headrest bracket is in sliding connection with the slide rod 266.
The lumbar support adjusting mechanism 27 includes: a second rotating bracket 271 provided at a lower portion of the lumbar support adjusting mechanism 27 and fixedly connected to the seatback main body 22; the third rotating bracket 272 is arranged at the upper part of the lumbar support adjusting mechanism 27 and is fixedly connected with the chair back body 22; a rotary lever 273 having a lower end rotatably coupled to the second rotary bracket 271 and a middle portion rotatably coupled to the third rotary bracket 272; a fourth face gear 274 provided at the upper end of the rotary lever 273 and drivingly connected to the rotary lever 273; the worm sleeve 275 is sleeved at the middle part of the rotary rod 273 and is in driving connection with the rotary rod 273; worm wheel 276, which is disposed at the side of worm sleeve 275, is fixedly connected with chair back body 22, and is meshed with worm sleeve 275; a rotating rod 277, one end of which is rotatably connected with the chair back body 22 and one end of which is rotatably connected with the lumbar support body 23; a sliding sleeve 278 sleeved on the rotating rod 277 and connected with the rotating rod 277 in a sliding manner; the stay 279 is arranged between the sliding sleeve 278 and the worm wheel 276, one end of the stay 279 is rotationally connected with the sliding sleeve 278, and the other end of the stay 279 is fixedly connected with the worm wheel 276.
The elevation adjustment mechanism 28 includes: the second motor 281 is arranged at the lower part of the elevation angle adjusting mechanism 28 and is electrically connected with the controller 4; the rotating wheel 282 is arranged above the second motor 281 and is in driving connection with the second motor 281; the bump 283 is arranged at the edge of the rotating wheel 282 and is fixedly connected with the rotating wheel 282; a swing lever 284 disposed above the bump 283, one end of which is rotatably connected to the bump 283; a rack 286 disposed below the seatback body 22 and rotatably connected to the other end of the swing lever 284 via a pin 285; a rack support 287 disposed at the end of the rack 286 and slidably coupled to the rack 286; elevation gear 288 is disposed at the lower portion of seatback body 22, fixedly coupled to seatback body 22, and engaged with rack 286.
Further comprises: the pressure sensing strip 6 is flexible and soft, is arranged in the middle of the surface of the chair back body 22 and is in wireless connection with the vehicle-mounted gateway 3; the first ultrasonic distance sensor 7 is arranged right above the automatic adjusting seat 2, fixedly connected with the top of the automobile body 1 and wirelessly connected with the vehicle-mounted gateway 3; the second ultrasonic distance sensor 8 is arranged right above the headrest body 21, fixedly connected with the top of the automobile body 1 and wirelessly connected with the vehicle-mounted gateway 3; the fingerprint identification device 9 is arranged on a door of the automobile body 1 and is in wireless connection with the vehicle-mounted gateway 3;
the first ultrasonic distance sensor 7 and the second ultrasonic distance sensor 8 are consistent in horizontal height.
An automobile comfort level adjusting method based on the Internet of things comprises the following steps:
Step one, the seat height is adjusted, a user sits in the automatic adjustment seat 2, the controller 4 controls the electric push rod 291 to extend or retract, and when the first ultrasonic distance sensor 7 detects that the distance from the head of the user reaches a set value, the electric push rod 291 stops working;
Step two, lumbar support adjustment, wherein the back of a user clings to the chair back body 22, the controller 4 controls the first motor 2501 to rotate reversely at a low speed, the second electromagnet 2512 is electrified, the clutch slide block 2509 is attracted to slide downwards, the clutch driving mechanism 25 is in driving connection with the lumbar support adjusting mechanism 27, and the lumbar support body 23 is controlled to rotate downwards to be separated from the surface of the chair back body 22; at this time, the pressure sensing strip 6 detects the pressure applied to the chair back body 22 and marks the position with the minimum pressure; the controller 4 controls the first motor 2501 to rotate positively to drive the lumbar support body 23 to rotate upwards until the pressure value at the mark position is maximum;
Step three, headrest adjustment, wherein the controller 4 controls the first motor 2501 to reversely rotate at a low speed, the first electromagnet 2511 is electrified, the clutch slide block 2509 is attracted to slide upwards, the clutch driving mechanism 25 is in driving connection with the headrest adjusting mechanism 26, the headrest is controlled to move up and down, and the headrest is stopped when the difference between the distance between the first ultrasonic distance sensor 7 and the head of a user and the distance between the second ultrasonic distance sensor 8 and the top of the headrest body 21 reaches a set value;
Step four, mode input, namely recording the adjustment steps of the mechanisms from the step one to the step three into the vehicle-mounted gateway 3, and carrying out identity recognition by different users through a fingerprint recognition device 9 on a vehicle door;
Step five, the mode is switched, the user enters the automobile, the user terminal 5 is used for selecting the seat mode, and the automatic adjusting seat 2 is adjusted to the exclusive mode of the user in advance.
Further comprises: when a user needs to rest, a rest instruction is input through the user terminal 5, the vehicle-mounted gateway 3 receives signals and transmits the signals to the controller 4, the controller 4 controls the second motor 281 to operate at a set angle, the elevation gear 288 is driven to rotate forwards, and the chair back body 22 is leaned backwards;
When the user leaves the car, the user inputs a car-leaving command through the user terminal 5, the controller 4 controls the second motor 281 to operate at a set angle, drives the elevation gear 288 to rotate reversely, and the chair back body 22 tilts forwards to start the anti-theft state.
The working principle of the automobile comfort level adjusting system based on the Internet of things is as follows: detecting waist positions of different users through the pressure sensing strip, setting that no load exists, namely when the waist rest body is not contacted with the surface of the chair back body, the waist of the user is the lowest pressure part of the user, and driving the waist rest adjusting mechanism to adjust the waist rest body to the waist position of the user by the clutch driving mechanism for supporting; meanwhile, the position of the head of a person away from the car roof is detected through the first ultrasonic distance sensor, the seat is driven to lift by the electric push rod, the height of human eyes is adjusted to be suitable for driving, the difference value between the distance between the car roof and the head of the user and the distance between the car roof and the top of the headrest body is controlled to be the normal height of the head of the person, the neck position of the user is estimated, and the headrest adjusting mechanism is driven by the clutch driving mechanism to adjust the headrest body to the neck position of the user for supporting.
In the embodiment of the application, the clutch driving mechanism is arranged to electrify or break the first electromagnet and the second electromagnet respectively, so that the clutch driving mechanism selectively drives the headrest adjusting mechanism or the lumbar support adjusting mechanism. When the first electromagnet is electrified and the second electromagnet is powered off, the sliding block is attracted to slide upwards to drive the sleeve to move upwards, so that the transmission shaft is driven to move upwards, and the first face gear is meshed with the third face gear; when the second electromagnet is electrified and the first electromagnet is powered off, the sliding block is attracted to slide downwards to drive the sleeve to move downwards, so that the transmission shaft is driven to move downwards, and the second face gear is meshed with the fourth face gear. The number of motors is reduced, the equipment cost is reduced, and the automation degree of the automatic adjustment seat is improved.
In the embodiment of the application, when a user needs to rest, a rest instruction is input through the user terminal, the vehicle-mounted gateway receives signals and transmits the signals to the controller, the controller controls the second motor to run at a set angle, the elevation gear is driven to rotate forward, the chair back body is leaned backward, the chair back body can be laid down and flat, and the comfort level of the user is improved; when a user leaves the automobile, the user inputs an automobile-leaving instruction through the user terminal, the controller controls the second motor to operate at a set angle, drives the elevation gear to rotate reversely, the chair back body tilts forwards, the anti-theft state is started, the thief cannot normally sit, and the anti-theft capability and the safety of the automobile are improved.
The air conditioner is connected with the air conditioning system of the automobile body through the air duct, can blow air to the lower side of the cushion body, improves the ventilation degree of the contact part of the cushion body after a user sits down, can refrigerate or heat the contact part of the cushion body according to the air supply temperature of the air conditioner, and improves the comfort of the user.
The invention and its embodiments have been described above schematically, without limitation, and the drawings illustrate only one embodiment of the invention and the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical scheme are not creatively devised without departing from the gist of the present invention, and all the structural manners and the embodiment are considered to be within the protection scope of the present invention.

Claims (3)

1. The utility model provides an automobile comfort level governing system based on thing networking, includes car body (1), automatically regulated seat (2), on-vehicle gateway (3), controller (4), user terminal (5), its characterized in that:
The self-adjusting seat (2) comprises: a headrest body (21), a seatback body (22), a lumbar support body (23), a cushion body (24), a clutch driving mechanism (25), a headrest adjusting mechanism (26), a lumbar support adjusting mechanism (27), an elevation angle adjusting mechanism (28), a seat lifting mechanism (29) and an air duct (241); the clutch driving mechanism (25) is arranged in the middle of the chair back body (22) and is electrically connected with the controller (4); the headrest adjusting mechanism (26) is arranged at the upper part of the chair back body (22), is positioned above the clutch driving mechanism (25), is matched with the clutch driving mechanism (25), is in driving connection with the headrest body (21), and controls the headrest body (21) to lift; the waist rest adjusting mechanism (27) is arranged at the lower part of the chair back body (22), is positioned below the clutch driving mechanism (25), is matched with the clutch driving mechanism (25), and is in driving connection with the waist rest body (23); the elevation angle adjusting mechanism (28) is arranged at the joint of the seat back body (22) and the seat cushion body (24), is in driving connection with the seat back body (22), controls the elevation angle of the seat back body (22), and is electrically connected with the controller (4); the seat lifting mechanism (29) is an electric push rod (291), is symmetrically arranged below the seat cushion body (24), is in driving connection with the seat cushion body (24), controls the seat cushion body (24) to lift and is electrically connected with the controller (4); the air duct (241) is arranged below the cushion body (21) and is communicated with an air conditioning system of the automobile body (1);
the controller (4) is in wireless connection with the vehicle-mounted gateway (3) and is used for receiving and sending control signals; the user terminal (5) is in wireless connection with the vehicle-mounted gateway (3) and is used for receiving push messages and sending out instructions;
The headrest adjusting mechanism (26) includes: the rotating seat (261) is arranged at the upper part of the headrest adjusting mechanism (26) and is fixedly connected with the chair back body (22); the first rotating bracket (262) is arranged at the lower part of the headrest adjusting mechanism (26) and is fixedly connected with the chair back body (22); the upper end of the screw rod (263) is rotationally connected with the rotating seat (261), and the middle part of the screw rod is rotationally connected with the first rotating bracket (262); the third face gear (264) is arranged at the lower end of the screw rod (263) and is in driving connection with the screw rod (263); the nut (265) is sleeved on the screw (263) and is in threaded driving connection with the screw (263); the slide bar (266) is vertically arranged at the upper part of the headrest adjusting mechanism (26) and is fixedly connected with the chair back body (22); the headrest bracket (267) is horizontally arranged at the upper part of the headrest adjusting mechanism (26), two ends of the headrest bracket are fixedly connected with the headrest body (21) and the nut (265) respectively, and the middle part of the headrest bracket is in sliding connection with the slide rod (266);
The lumbar support adjustment mechanism (27) includes: the second rotating bracket (271) is arranged at the lower part of the waist rest adjusting mechanism (27) and is fixedly connected with the chair back body (22); the third rotating bracket (272) is arranged at the upper part of the waist rest adjusting mechanism (27) and is fixedly connected with the chair back body (22); a rotary rod (273), the lower end of which is rotatably connected with the second rotary bracket (271), and the middle of which is rotatably connected with the third rotary bracket (272); a fourth face gear (274) provided at the upper end of the rotary lever (273) and drivingly connected to the rotary lever (273); the worm sleeve (275) is sleeved at the middle part of the rotary rod (273) and is in driving connection with the rotary rod (273); the worm wheel (276) is arranged at the side part of the worm sleeve (275), is fixedly connected with the chair back body (22) and is meshed with the worm sleeve (275); one end of the rotating rod (277) is rotationally connected with the chair back body (22), and the other end is rotationally connected with the waist rest body (23); a sliding sleeve (278) sleeved on the rotating rod (277) and connected with the rotating rod (277) in a sliding way; the stay bar (279) is arranged between the sliding sleeve (278) and the worm wheel (276), one end of the stay bar is rotationally connected with the sliding sleeve (278), and the other end of the stay bar is fixedly connected with the worm wheel (276);
the elevation adjustment mechanism (28) includes: the second motor (281) is arranged at the lower part of the elevation angle adjusting mechanism (28) and is electrically connected with the controller (4); the rotating wheel (282) is arranged above the second motor (281) and is in driving connection with the second motor (281); the convex block (283) is arranged at the edge of the rotating wheel (282) and is fixedly connected with the rotating wheel (282); a swing lever (284) provided above the bump (283), one end of which is rotatably connected to the bump (283); the rack (286) is arranged below the chair back body (22) and is rotationally connected with the other end of the swinging rod (284) through a pin shaft (285); the rack bracket (287) is arranged at the tail end of the rack (286) and is in sliding connection with the rack (286); the elevation gear (288) is arranged at the lower part of the chair back body (22), fixedly connected with the chair back body (22) and meshed with the rack (286);
Further comprises: the pressure sensing strip (6) is flexible and soft, is arranged in the middle of the surface of the chair back body (22) and is in wireless connection with the vehicle-mounted gateway (3); the first ultrasonic distance sensor (7) is arranged right above the automatic adjusting seat (2), fixedly connected with the top of the automobile body (1) and wirelessly connected with the vehicle-mounted gateway (3); the second ultrasonic distance sensor (8) is arranged right above the headrest body (21), fixedly connected with the top of the automobile body (1) and wirelessly connected with the vehicle-mounted gateway (3); the fingerprint identification device (9) is arranged on a door of the automobile body (1) and is in wireless connection with the vehicle-mounted gateway (3);
the first ultrasonic distance sensor (7) and the second ultrasonic distance sensor (8) are consistent in horizontal height;
The clutch driving mechanism (25) includes: the clutch sliding rail (2510) is fixedly connected to the chair back body (22); the clutch sliding block (2509) is vertically arranged on the clutch sliding rail (2510) and is in sliding connection with the clutch sliding rail (2510); the first electromagnet (2511) is arranged above the clutch slider (2509) and is electrically connected with the controller (4); the second electromagnet (2512) is arranged below the clutch slider (2509) and is electrically connected with the controller (4); the connecting rod (2508) is horizontally arranged at the side part of the clutch slide block (2509), and one end of the connecting rod is fixedly connected with the clutch slide block (2509); the sleeve (2507) is arranged at the tail end of the connecting rod (2508) and is fixedly connected with the connecting rod (2508); a transmission shaft (2504) vertically arranged in the sleeve (2507), rotationally connected with the sleeve (2507) and in clearance fit with the sleeve (2507); a driven gear (2503) sleeved on the transmission shaft (2504) and in driving connection with the transmission shaft (2504); a first face gear (2505) arranged at the upper end of the transmission shaft (2504) and in driving connection with the transmission shaft (2504); a second face gear (2506) arranged at the lower end of the transmission shaft (2504) and in driving connection with the transmission shaft (2504); the first motor (2501) is arranged at the side part of the transmission shaft (2504), fixedly connected with the chair back body (22) and electrically connected with the controller (4); a driving gear (2502) sleeved on a first motor (2501) shaft of the first motor (2501), connected with the first motor (2501) in a driving way, and meshed with a driven gear (2503);
the transmission shaft (2504) is fixedly connected with the sleeve (2507) in the axial direction;
A first limit step (2504 a) and a second limit step (2504 b) are arranged on the transmission shaft (2504), the lower part of the first limit step (2504 a) is in butt joint with the upper end face of the sleeve (2507), and the upper part of the second limit step (2504 b) is in butt joint with the lower end face of the sleeve (2507);
the distance between the clutch driving mechanism (25) and the headrest adjusting mechanism (26) is equal to the distance between the first electromagnet (2511) and the clutch slider (2509);
The distance between the clutch driving mechanism (25) and the lumbar support adjusting mechanism (27) is equal to the distance between the second electromagnet (2512) and the clutch slider (2509);
The difference in axial width between the driving gear (2502) and the driven gear (2503) is greater than the sum of the distances between the clutch slider (2509) and the first and second electromagnets (2511, 2512).
2. An adjustment method of an internet of things-based automobile comfort adjustment system according to claim 1, comprising the steps of:
Step one, adjusting the height of a seat, wherein a user sits in an automatic adjusting seat (2), and a controller (4) controls an electric push rod (291) to extend or retract until a first ultrasonic distance sensor (7) detects that the distance from the head of the user reaches a set value, and the electric push rod (291) stops working;
Step two, lumbar support adjustment, wherein the back of a user clings to a chair back body (22), a controller (4) controls a first motor (2501) to rotate reversely at a low speed, a second electromagnet (2512) is electrified, a clutch sliding block (2509) is attracted to slide downwards, a clutch driving mechanism (25) is in driving connection with a lumbar support adjusting mechanism (27), and the lumbar support body (23) is controlled to rotate downwards to be separated from the surface of the chair back body (22); at the moment, the pressure sensing strip (6) detects the pressure born by the chair back body (22) and marks the position with the minimum pressure; the controller (4) controls the first motor (2501) to rotate positively and drives the lumbar support body (23) to rotate upwards until the pressure value at the marked position is maximum;
Step three, headrest adjustment, wherein a controller (4) controls a first motor (2501) to reversely rotate at a low speed, a first electromagnet (2511) is electrified, a clutch sliding block (2509) is attracted to slide upwards, a clutch driving mechanism (25) is in driving connection with a headrest adjusting mechanism (26), headrest lifting movement is controlled, and the headrest is stopped when the difference between the distance between a first ultrasonic distance sensor (7) and the head of a user and the distance between a second ultrasonic distance sensor (8) and the top of a headrest body (21) reaches a set value;
step four, mode input, namely recording the adjustment steps of the mechanisms from the step one to the step three into a vehicle-mounted gateway (3), and carrying out identity recognition by different users through a fingerprint recognition device (9) on a vehicle door;
Step five, mode switching, wherein a user enters the automobile, and the user terminal (5) performs seat mode selection to adjust the automatic adjusting seat (2) to the exclusive mode of the user in advance.
3. The adjusting method of the automobile comfort adjusting system based on the internet of things according to claim 2, wherein the adjusting method comprises the following steps:
when a user needs to rest, a rest instruction is input through the user terminal (5), the vehicle-mounted gateway (3) receives signals and transmits the signals to the controller (4), the controller (4) controls the second motor (281) to operate at a set angle, the elevation gear (288) is driven to rotate forwards, and the chair back body (22) is leaned backwards;
When a user leaves the automobile, an automobile-leaving instruction is input through the user terminal (5), the controller (4) controls the second motor (281) to operate at a set angle, the elevation gear (288) is driven to rotate reversely, the chair back body (22) tilts forwards, and the anti-theft state is started.
CN202111091924.3A 2021-09-17 2021-09-17 Automobile comfort level adjusting system and method based on Internet of things Active CN113799667B (en)

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* Cited by examiner, † Cited by third party
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US10324463B1 (en) * 2016-01-22 2019-06-18 State Farm Mutual Automobile Insurance Company Autonomous vehicle operation adjustment based upon route
CN209965810U (en) * 2019-05-29 2020-01-21 常州搏聚智能科技有限公司 Fixing structure and functional sofa using same
CN110901341A (en) * 2019-12-12 2020-03-24 奇瑞汽车股份有限公司 System and method for intelligently adjusting temperature in vehicle
CN111407051A (en) * 2020-04-30 2020-07-14 临海市利聚工艺品有限公司 Multifunctional movable base for outdoor umbrella
CN111468408A (en) * 2020-05-07 2020-07-31 新昌县洪希食品科技有限公司 Tealeaves is dried and is edulcorated device
CN211862336U (en) * 2020-04-16 2020-11-06 李晨欢 Connecting mechanism of headrest and backrest
CN112550089A (en) * 2020-12-17 2021-03-26 武汉格罗夫氢能汽车有限公司 Internet of vehicles intelligent seat system, control method and hydrogen energy automobile

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10324463B1 (en) * 2016-01-22 2019-06-18 State Farm Mutual Automobile Insurance Company Autonomous vehicle operation adjustment based upon route
CN209965810U (en) * 2019-05-29 2020-01-21 常州搏聚智能科技有限公司 Fixing structure and functional sofa using same
CN110901341A (en) * 2019-12-12 2020-03-24 奇瑞汽车股份有限公司 System and method for intelligently adjusting temperature in vehicle
CN211862336U (en) * 2020-04-16 2020-11-06 李晨欢 Connecting mechanism of headrest and backrest
CN111407051A (en) * 2020-04-30 2020-07-14 临海市利聚工艺品有限公司 Multifunctional movable base for outdoor umbrella
CN111468408A (en) * 2020-05-07 2020-07-31 新昌县洪希食品科技有限公司 Tealeaves is dried and is edulcorated device
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