CN212814877U

CN212814877U - Follow suitcase

Info

Publication number: CN212814877U
Application number: CN202021213006.4U
Authority: CN
Inventors: 张艳; 汪浩; 杨忠; 蔡圆圆
Original assignee: Jinling Institute of Technology
Current assignee: Jinling Institute of Technology
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-03-30
Anticipated expiration: 2030-06-28

Abstract

The utility model discloses a following suitcase, which comprises a box body, a front wheel and a rear wheel. The box body is provided with a main control chip, a power supply unit, an alarm unit and a rear wheel which are respectively connected to the main control chip with circuit signals. A drive unit for wheel rotation and direction adjustment and a work control unit for follow-up, the work control unit includes a UWB sensor, a HC‑SR04 ultrasonic ranging tube and a Bluetooth module that can be connected to a mobile phone signal, and the box includes an outer casing, The outer shell is provided with a storage compartment, a seat plate is rotated in the storage compartment, an elastic rotating shaft is fixed at the bottom of the seat plate, and a seat bracket is arranged on the elastic rotating shaft; it can automatically follow The owner is easy to carry, will not fall, lose and other phenomena, and can provide a seat for the user at any time, for the user to rest anytime and anywhere, and improve the functionality.

Description

Follow suitcase

Technical Field

The utility model relates to the field of household items, especially, relate to a follow suitcase.

Background

The luggage, also called travelling case and draw-bar box, is a kind of luggage, which is a kind of luggage to be carried when going out for placing articles, and is usually used for placing clothes, personal care articles and souvenirs needed in journey.

The existing draw-bar box can only be pulled by manpower, and if more boxes are provided, the existing draw-bar box can not be pulled at the same time, which brings inconvenience to travel. In addition, under the environment of complicated people stream, passengers who only have the pictures and the pictures often cannot worry about the luggage comprehensively, and the phenomenon that the luggage falls down or even is lost often occurs.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a follow suitcase, its advantage lies in, can follow owner automatically, and convenient to carry can not appear falling down, losing phenomenons such as to can provide the seat for the user at any time, supply the user to have a rest anytime and anywhere, improve the functionality.

The technical scheme of the utility model includes that a follow suitcase, including box, front wheel and rear wheel, be equipped with main control chip in the box, respectively with main control chip circuit signal connection's power supply unit, alarm unit, control front wheel rear wheel rotation and the drive unit of diversion and the work control unit who realizes following, the work control unit includes UWB sensor, HC-SR04 ultrasonic ranging pipe and can with cell-phone signal connection's bluetooth module, the box includes the shell body, be equipped with on the shell body and accomodate the interlayer, it is equipped with the seat board to accomodate the interlayer internal rotation, the fixed elasticity pivot that is equipped with in seat board bottom, be equipped with the seat support in the elasticity pivot.

The utility model discloses further set up to: the box is including setting up the first layer component board in the shell body bottom, front wheel, rear wheel, drive unit, alarm unit all set up on first layer component board, the fixed protection isolation layer that is equipped with in first layer component board top, the fixed second layer component board that is equipped with in protection isolation layer upper end, main control chip sets up in second layer component board.

The utility model discloses further set up to: the driving unit comprises a direct current motor for controlling the front wheel to rotate and steering engines respectively arranged on the front wheel for controlling the direction of the front wheel, a direct current motor driver and a steering engine driver are arranged on the first layer of element plate, and the driving unit further comprises a gear transmission assembly connected with the direct current motor and used for controlling the rear wheel.

The utility model discloses further set up to: the UWB sensors are uniformly arranged at the bottom of the first layer element plate, and the three UWB sensors can be connected to form a regular triangle.

The utility model discloses further set up to: four HC-SR04 ultrasonic ranging tubes are arranged to surround the side wall of the first layer element plate.

The utility model discloses further set up to: the power supply unit is including setting up the chargeable lithium ion battery of 12V in first layer component board bottom, the chargeable lithium ion battery of 12V passes through the lithium cell mount and installs in first layer component board bottom, protection isolation layer outer wall is equipped with the power socket who charges usefulness to the lithium cell, power supply unit still includes the voltage conversion module with main control chip circuit signal connection, the shell body top is equipped with the USB voltage conversion interface of drawing forth by voltage conversion module.

The utility model discloses further set up to: and a GPS positioning system in signal connection with the main control chip circuit is arranged in the second layer element board.

The utility model discloses further set up to: the alarm unit comprises a loudspeaker in signal connection with the main control chip circuit.

The utility model discloses further set up to: the main control chip is an STC89C52 type main control chip, the direct current motor is a 110ZY12-001 permanent magnet direct current type motor, and the steering engine is an RDS3115 steering engine.

To sum up, the utility model discloses following beneficial effect has:

1. the suitcase is internally provided with a UWB sensor, an HC-SR04 ultrasonic ranging tube and a Bluetooth module which can be in signal connection with a mobile phone, and can be connected with the mobile phone through the Bluetooth module, and the speed grade and the following distance of the suitcase can be set through the mobile phone by the work of the UWB sensor, the HC-SR04 ultrasonic ranging tube and other components, so that the controllability 'following' performance of the suitcase can be realized;

2. the outer shell of the luggage case is provided with the foldable seat, so that the seat can be used for a user to rest at any time and any place, and the storage space in the luggage case is not influenced after the seat is stored, and the external obstruction is not caused;

3. the power module is arranged in the luggage case, so that the luggage case can be charged to provide power for internal components, and meanwhile, the USB voltage conversion interface is arranged, so that a mobile phone can be charged, and the functionality of the luggage case is further improved;

4. the luggage case is internally provided with a GPS positioning system and an alarm unit, whether triggering is carried out or not is controlled by comparing the distance calculated by a positioning algorithm with the distance set by a mobile phone owner, once the distance calculated by the algorithm exceeds the set distance, an alarm sounds, and a main control chip drives a built-in GPS to send the current position to the mobile phone of the owner in real time;

5. the HC-SR04 ultrasonic ranging tube is arranged around the trunk, so that the detection of the barrier is facilitated;

6. the three UWB sensors are installed at the bottom in a regular triangle, so that the distance between the UWB sensors and a mobile phone signal can be calculated accurately, and distance controllable 'following' is realized;

7. most of the modular components of the present luggage case are mounted to the bottom of the luggage case to lower the center of gravity of the luggage case and increase the stability of the luggage case.

Drawings

FIG. 1 is a schematic view of the overall structure of the present luggage case;

FIG. 2 is a schematic view of the present luggage case outer case provided with a seat plate and the like;

FIG. 3 is a system diagram of the modular units within the present luggage case;

FIG. 4 is a schematic diagram of the components on the first level component board of the present luggage case;

FIG. 5 is a perspective view of the first layer of component boards and protective barrier layer in the present luggage case, also a schematic view of a UWB sensor;

fig. 6 is a schematic diagram of the components on the second layer element board in the present luggage case.

In the figure: 1-1, front wheels; 1-2, rear wheels; 2. a first layer of element boards; 2-1, a direct current motor; 2-3, an alarm unit; 2-5, a direct current motor driver; 2-6, 12V rechargeable lithium ion batteries; 2-7, a steering engine driver; 2-9, UWB sensors; 2-10, lithium battery fixing frame; 3. a protective isolation layer; 4. a second layer element board; 4-1, a Bluetooth module; 4-3, a main control chip; 4-4, a circuit board; 4-5, a GPS positioning system; 5. an electronic fingerprint lock; 6. an outer housing; 7. a liquid crystal display screen; 8. a pull rod; 9. a USB voltage conversion interface; 10. a power outlet; 11. an auxiliary wheel; 12. a steering engine; 13. HC-SR04 ultrasonic ranging tube; 14. a storage interlayer; 15. a seat plate; 16. an elastic rotating shaft; 17. a seat support.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): a following luggage case comprises a case body, two front wheels 1-1 and two rear wheels 1-2, wherein the case body comprises a first layer element plate 2 arranged at the bottom, the front wheels 1-1 and the rear wheels 1-2 are both arranged at the bottom of the first layer element plate 2, a protective isolation layer 3 is arranged at the upper end of the first layer element plate 2, a second layer element plate 4 is arranged at the upper end of the protective isolation layer 3, an outer shell 6 which forms a storage space of the luggage case and can be opened and closed is arranged at the upper end of the second layer element plate 4, the outer shell 6 is locked through an electronic fingerprint lock 5, and a pull rod 8 is arranged at the top of the outer shell 6; meanwhile, as shown in fig. 1 and 2, the back of the outer shell 6 is provided with a storage compartment 14, a seat plate 15 is arranged in the storage compartment 14 in a rotating manner, an elastic rotating shaft 16 is fixedly arranged at the bottom of the seat plate 15, and a seat support 17 is arranged on the elastic rotating shaft 16, namely, the seat plate 15 is turned over under the action of the elastic rotating shaft 16, so that the seat plate is parallel to the bottom surface and is used for a user to sit down for rest, meanwhile, the seat support 17 plays a supporting role for the seat plate 15, and the storage compartment 14 is convenient for the seat plate 15 to turn.

As shown in fig. 3 and 6, the box body is internally provided with an STC89C52 type main control chip 4-3, a power supply unit, an alarm unit 2-3, a driving unit for controlling the rotation and direction adjustment of the front wheel 1-1 and the rear wheel 1-2, and a work control unit for realizing following, which are respectively in circuit signal connection with the main control chip 4-3.

As shown in fig. 1, 3 and 5, the power supply unit includes 12V rechargeable lithium ion batteries 2 to 6 disposed at the bottom of the first layer element board 2, the 12V rechargeable lithium ion batteries 2 to 6 are mounted at the bottom of the first layer element board 2 through lithium battery holders 2 to 10, a power socket 10 for charging the lithium batteries is disposed on the outer wall of the protective isolation layer 3, the power supply unit further includes a voltage conversion module in signal connection with the main control chip 4 to 3, a USB voltage conversion interface 9 led out from the voltage conversion module is disposed at the top of the outer shell 6, the 12V rechargeable lithium ion batteries 2 to 6 are charged through the power socket 10 so as to provide power for the main control chip 4 to 3, meanwhile, the main control chip 4 to 3 is initialized through the voltage conversion module, and the USB voltage conversion interface 9 is convenient for charging the mobile phone.

As shown in fig. 3 and 4, the alarm unit 2-3 includes a speaker connected to a circuit signal of the main control chip 4-3 and disposed at the bottom of the first-layer component board 2.

As shown in fig. 3-5, the driving unit includes 2 110ZY12-001 permanent-magnet dc motors disposed on the first layer element board 2 and controlling the rotation of the front wheel 1-1, an RDS3115 steering engine 12 respectively disposed on the front wheel 1-1 and controlling the direction of the front wheel 1-1, a dc motor driver 2-5 and a steering engine driver 2-7 are further disposed on the first layer element board 2, and the driving unit further includes a gear transmission assembly connected with the dc motor 2-1 and controlling the rear wheel 1-2; 2 direct current motors 2-1 are directly connected with the front wheels 1-1, 2 direct current motors 2-1 are in gear transmission with the rear wheels 1-2 on the other side, and two steering engines 12 regulate and control the directions of the gears so as to control the steering of the front wheels 1-1.

As shown in fig. 3 to 5, the operation control unit includes three UWB sensors 2 to 9 disposed at the bottom of the first layer element board 2, the three UWB sensors 2 to 9 are uniformly disposed at the bottom of the first layer element board 2, and the three UWB sensors may be connected to form a regular triangle, and the distance measurement principle of the UWB sensors 2 to 9 is as follows.

A, B and C are three UWB sensors 2-9M installed at the bottom of the luggage case as signal terminals, A, B and C are in a regular triangle part, AB = BC = CA = a, H is the center of a triangle, AH is a Y axis, BC is a two-dimensional coordinate system of an X axis, M is the position of the signal terminal, M' is the projection of M on the two-dimensional coordinate system, the distances d1, d2 and d3 of MA, MB and MC can be calculated according to the time when the UWB sensors 2-9 receive wireless signals, and the distance L between the signal terminal and the luggage case can be obtained through corresponding formulas.

The influence of load change on the rotating speed of the motor can be reduced through PID adjustment, so that the luggage case moves more smoothly.

As shown in fig. 3 and 5, the operation control unit further comprises four HC-SR04 ultrasonic ranging tubes 13, and the four HC-SR04 ultrasonic ranging tubes 13 are arranged to surround the side wall of the first layer element plate 2; the work control unit also comprises a Bluetooth module 4-1 which can be in signal connection with the mobile phone.

As shown in fig. 6, the main control chip 4-3 is disposed in the second layer element board 4, and a GPS positioning system 4-5 connected with the main control chip 4-3 and a circuit board 4-4 are disposed in the second layer element board 4.

The specific implementation mode is as follows: and pressing a start button, initializing a main control chip 4-3, connecting the Bluetooth of the mobile phone, setting modes such as speed grade, following distance and the like, and then starting to operate. The main control chip 4-3 controls the 3 UWB sensors 2-9 to receive wireless signals sent by the mobile phone signal terminal, then calculates 3 distances between the signal terminal and the 3 UWB sensors 2-9 according to the time transmitted by the wireless signals, and positions the signal terminal by utilizing the positioning algorithm. The main control chip 4-3 outputs an electric signal to control the motor to operate through PID regulation. In the period, the HC-SR04 ultrasonic ranging tube 13 continuously operates to detect surrounding pedestrians or obstacles, and returns a feedback signal to the main control chip 4-3, so that the main control chip 4-3 drives the steering engine 12 to regulate and control the direction in due time. The electric quantity of the luggage case can be transmitted to the mobile phone through the Bluetooth module 4-1 in real time and displayed.

Whether the alarm unit 2-3 is triggered or not is controlled by comparing the distance calculated by the positioning algorithm with the distance set by the owner of the mobile phone, once the distance calculated by the algorithm exceeds the set distance, the loudspeaker sounds, and the main control chip 4-3 drives the built-in GPS to send the current position to the mobile phone of the owner in real time.

In this embodiment, as shown in fig. 1, an auxiliary wheel 11 is further disposed at the bottom of the first layer element board 2 between the front wheel 1-1 and the rear wheel 1-2 to improve the stability of the movement of the luggage case, and a liquid crystal display 7 capable of displaying parameters such as electric quantity, distance, etc. is disposed at the top of the case.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. A following luggage case comprises a case body, a front wheel (1-1) and a rear wheel (1-2), and is characterized in that: be equipped with main control chip (4-3) in the box, respectively with main control chip (4-3) circuit signal connection's power supply unit, alarm unit (2-3), control front wheel (1-1) rear wheel (1-2) rotate and transfer to the drive unit and realize the work control unit who follows, the work control unit includes UWB sensor (2-9), HC-SR04 ultrasonic ranging pipe (13) and can with cell-phone signal connection's bluetooth module (4-1), the box includes shell body (6), be equipped with on shell body (6) and accomodate interlayer (14), it is equipped with seat board (15) to accomodate interlayer (14) internal rotation, fixed elastic rotating shaft (16) that is equipped with in seat board (15) bottom, be equipped with seat support (17) on elastic rotating shaft (16).

2. A follow-up luggage case according to claim 1, wherein: the box is including setting up first layer component board (2) in shell (6) bottom, front wheel (1-1), rear wheel (1-2), drive unit, alarm unit (2-3) all set up on first layer component board (2), fixed protection isolation layer (3) that are equipped with in first layer component board (2) top, fixed second layer component board (4) that are equipped with in protection isolation layer (3) upper end, main control chip (4-3) set up in second layer component board (4).

3. A follow-up luggage case according to claim 2, wherein: the driving unit comprises a direct current motor (2-1) for controlling the front wheel (1-1) to rotate, steering engines (12) respectively arranged on the front wheel (1-1) for controlling the direction of the front wheel (1-1), direct current motor drivers (2-5) and steering engine drivers (2-7) are arranged on the first layer element plate (2), and the driving unit further comprises a gear transmission assembly connected with the direct current motor (2-1) and used for controlling the rear wheel (1-2).

4. A follow-up luggage case according to claim 1, wherein: the three UWB sensors (2-9) are uniformly arranged at the bottom of the first layer element plate (2), and the three UWB sensors can be connected to form a regular triangle.

5. A follow-up luggage case according to claim 1, wherein: four HC-SR04 ultrasonic ranging tubes (13) are arranged to surround the side wall of the first layer element plate (2).

6. A follow-up luggage case according to claim 2, wherein: the power supply unit comprises 12V rechargeable lithium ion batteries (2-6) arranged at the bottom of a first layer element plate (2), the 12V rechargeable lithium ion batteries (2-6) are arranged at the bottom of the first layer element plate (2) through lithium battery fixing frames (2-10), a power socket (10) for charging the lithium batteries is arranged on the outer wall of a protection isolation layer (3), the power supply unit further comprises a voltage conversion module connected with a main control chip (4-3) through a circuit signal, and a USB voltage conversion interface (9) led out by the voltage conversion module is arranged at the top of an outer shell (6).

7. A follow-up luggage case according to claim 2, wherein: and a GPS (global positioning system) positioning system (4-5) in signal connection with the main control chip (4-3) circuit is arranged in the second layer element board (4).

8. A follow-up luggage case according to claim 1, wherein: the alarm unit (2-3) comprises a loudspeaker in signal connection with the main control chip (4-3).

9. A follow-up luggage case according to claim 3, wherein: the main control chip (4-3) is an STC89C52 type main control chip (4-3), the direct current motor (2-1) is a 110ZY12-001 permanent magnet direct current type motor, and the steering engine (12) is an RDS3115 steering engine (12).