KR20180085955A - Electronic skateboard system and control method of their product - Google Patents

Abstract

An electric power board system and a method for controlling the same are disclosed. The electric power board system according to the present invention includes: an electric power board including a deck on which a user rides by placing feet, a wheel connected to a lower end of the deck, a motor for rotating the wheel, a sensor for sensing driving information including angle information, and a battery for supplying power; and a user terminal receiving the driving information, setting an operation mode selected as one of a constant speed mode and a general mode for operation based on one of maintaining, increasing, and decreasing the current speed of the electric power board without additional operation in accordance with the slope of a road surface of the electric power board in accordance with user operation, and generating a control signal in accordance with the operation mode. According to the present invention, the convenient operation function of the user terminal can be diversely supported and energy consumption is small, and thus electric power board operation by a user can be facilitated.

Description

ELECTRONIC SKATEBOARD SYSTEM AND CONTROL METHOD OF THEIR PRODUCT [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric board system and a control method thereof, and more particularly, to an electric board system which communicates with a user terminal and controls an electric board, and provides various operation modes according to travel information of the electric board. Control method.

A pair of skateboards were placed on the skateboards, the other was placed on the ground, and the feet on the ground were rolled to move the skateboard forward. Then, the center of the body was moved forward and backward to generate forward motion. However, It is difficult to climb up the hill, it is difficult to climb the hill, the speed is slow, the speed and thrill falls, and there is no separate braking device, so there is a risk of accident when driving on the downhill road. There has been a big problem.

Therefore, to solve these problems and inconveniences, an electric skateboard equipped with an engine was developed and a speed control device equipped with a brake lever was installed to adjust the speed so that the thrill and speed feeling on the flat surface can be felt in an uphill It was.

However, the electric skateboard equipped with such an engine has many troubles caused by high speed when the engine is turned off at high speed due to insufficient battery or fuel, and the speed is controlled by the user at all times. Therefore, There is a need for this.

Korean Patent No. 20-04203260000 Korean Patent No. 10-16213270000

In order to solve the above-mentioned problems, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to automatically adjust the speed of a board to limit the maximum speed of the board when the remaining battery level becomes less than a predetermined level, Function and so on to provide user-friendly electric board.

The technical problem of the present invention is not limited to the above-mentioned technical problems, and other technical problems which are not mentioned can be clearly understood by those skilled in the art from the following description.

In order to accomplish the object of the present invention, an electric board system according to an embodiment of the present invention includes a deck on which a user stands, a wheel connected to a lower end of the deck, a motor for rotating the wheel, A sensor for sensing, an electric power board including a battery for supplying power, and an operation mode in which the driving mode is selected as one of a constant speed mode and a normal mode of the power board in response to a user's operation, To the user terminal.

In the constant speed mode of the operation mode, the electric board transmits the angle information to the user terminal, and the user terminal generates the control signal that operates either the acceleration or deceleration, maintaining the current speed of the electric board without any additional operation according to the inclination of the road surface So that the electric board is driven at a constant speed.

The user terminal generates a control signal for decelerating the current speed when the inclination of the road surface is equal to or less than a predetermined threshold according to the angle information received from the power board, and when the inclination of the road surface is equal to or greater than a predetermined threshold, .

In the embodiment of the present invention, if the traveling information includes information on the remaining amount of the battery and the remaining amount of the battery is less than the predetermined threshold, the user terminal transmits the control signal for limiting the maximum speed of the power board to a predetermined reference value or less .

In another embodiment of the present invention, the sensor for sensing travel information includes a pressure sensor for measuring pressure, and the motor is operated when the user is aboard the deck and pressure is sensed.

A control method of an electric power board system according to an embodiment for realizing the object of the present invention is a control method of an electric power board system including a user terminal and an electric power board operated according to a control signal of a user terminal, The controller senses driving information at the time of operation and transmits the sensing information to the user terminal. The user terminal receives the driving information and selects one of the constant speed mode and the normal mode of the power board according to the user's operation Sets an operation mode, and generates a control signal in accordance with the operation mode.

The user terminal generates a control signal for decelerating the current speed when the inclination of the road surface is equal to or less than a predetermined threshold according to the angle information received from the power board, and when the inclination of the road surface is equal to or greater than a predetermined threshold, .

In the embodiment of the present invention, the traveling information includes information on the remaining amount of the battery, and if the remaining amount of the battery is less than the predetermined threshold, the user terminal transmits a control signal for limiting the maximum speed of the power board to a predetermined reference value or less .

Further, in another embodiment of the present invention, the sensor for sensing the traveling information includes a pressure sensor for measuring pressure, and the motor is operated when the user is aboard the deck and pressure is sensed.

According to the above-described aspect of the present invention, compared to other moving means such as a vehicle or a motorcycle, the user can apply a constant speed mode as a personal mobility to provide a variety of convenient functions while consuming less energy, You can safely use the power board by limiting the maximum speed of the board depending on the remaining battery level.

1 is a perspective view showing a front face of an electric board of the present invention.
2 is a perspective view showing a rear surface of the electric board.
3 is a diagram showing a user terminal and a main screen.
4 is a flow chart of a method for controlling an electric board system.

The following detailed description of the invention refers to the accompanying drawings, which illustrate, by way of example, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with an embodiment. It is also to be understood that the position or arrangement of the individual components within each disclosed embodiment may be varied without departing from the spirit and scope of the invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is to be limited only by the appended claims, along with the full scope of equivalents to which such claims are entitled, if properly explained. In the drawings, like reference numerals refer to the same or similar functions throughout the several views.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. It is noted that the terms " comprises "and / or" comprising ", as used herein, do not exclude the presence or addition of one or more other elements, steps and operations.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings.

FIG. 1 is a perspective view showing a front face of an electric board of the present invention, FIG. 2 is a perspective view showing a back face of the electric board, FIG. 3 is a view showing a user terminal and a main screen, Fig.

1 and 2 are perspective views of a motorized board, in which a user mounts a deck on which a foot is mounted, a wheel connected to a lower end of the deck, a motor for rotating the wheel, a sensor for sensing travel information, A battery for supplying power, and a control unit for controlling the operation of the power board.

The deck of the electric board is a part where the user lifts his or her foot and is formed to have a width sufficient to be two feet wide in a direction perpendicular to the traveling direction so that the two feet can be raised at the same time, And may have a shape in which the front and rear portions of the wheels where the wheels are located are narrowed so that the wheels can be operated without any catching. In addition, the deck material can be made of rubber material for shock absorption when landing on a strong synthetic wood or electric board, and a non-slip pad can be installed to prevent the user from sliding off the power board by sliding over the deck.

The control unit is attached to the lower end of the deck so that the control unit generates an operation signal and transmits an operation signal to the motor only when the user is aboard the deck by the pressure sensor included in the control unit, If the control signal is not received, the control unit does not generate an operation signal, so that even when the user operates the user terminal by mistake, it is possible to prevent an accident that may occur due to the operation of the electric board.

The wheels of the electric power board are connected to the power train, which is the axis of the wheels attached to the lower end of the deck, and are made of a rubber material to rotate by the motor and to absorb shocks caused by the curvature of the road surface. The axis of the wheel may be formed long enough to prevent the deck from contacting the deck because the deck may be bent downward by the load of the user, and a high-strength metal alloy or the like may be used. In addition, the size of the wheel is 83 mm in diameter, and the gear ratio of the motor and the wheel may be 1: 2.25, but is not limited thereto.

The motor is connected to the power train and receives an operation signal from the control unit to transmit power to the wheel. The motor is located on the left wheel of the rear wheel or other wheels, is fixed by the motor bracket, and SK3-6374 is used as BLDC motor (Bruchless Motor), so that the motor can be used for a long time without increasing noise or deteriorating performance. However, the present invention is not limited to this, and all alternative motors and motor drives can be used.

The sensor for sensing the running information of the electric board includes an angle sensor for measuring the inclination of the road surface, a pressure sensor for sensing the weight of the user, and a speed sensor for measuring the speed of the electric board.

The angle sensor senses the inclination of the road surface underway by the electric board to generate angle information of the inclination and transmits the information to the controller. The angle sensor may be a gyro sensor or any other sensor device capable of measuring the inclination angle.

The pressure sensor is installed at the bottom of the deck of the power board. When the user board the electric board, the pressure sensor senses the weight of the user and transmits the pressure signal to the controller.

The speed sensor senses the speed in the traveling direction of the electric board, generates speed information and transmits it to the control unit, and the control unit transmits the speed information to the user terminal. As described later, when the battery remaining amount is less than a predetermined threshold value by battery information, the user terminal generates a control signal for limiting the maximum speed of the power board to a predetermined reference value or less by limiting the maximum speed of the power board, If the power board is running at a high speed, even if the battery is exhausted and the power is cut off, the user can safely get off the motorized board. The threshold value of the battery remaining amount and the reference value of the maximum speed of the power board can be arbitrarily set by the user.

The battery is installed with the control unit at the bottom of the deck, and supplies power to the motor to power the motor. The battery can be used in a 3-cell 11.1V, 8000mAh capacity with two batteries connected in series.

The control unit controls the overall operation of the power board and receives driving information including speed information, battery information, mileage information, and angle information from various sensors and transmits the information to the user terminal. Further, a control signal is received from the user terminal by a user's operation, and an operation signal is generated, and the electric board is operated through the motor.

The control unit includes a communication module for communicating with the user terminal, and a control module for processing various signals. Communication with the user terminal can be performed using Bluetooth, beacon, XBee, ZigBee communication, or RC (Radio Contrl) communication as a short distance communication. Wireless communication is possible through UART, I2C, USB, CAN- But the present invention is not limited thereto.

The control module transmits information sensed by various sensors and the travel distance of the power board measured by the distance measuring device to the user terminal, generates an operation signal of the power board based on the received control signal, and operates the power board . The control module can include an MCU or a motor drive, and if the sensorless BLDC motor is used, the motorless VESC can be used to more precisely control the sensorless BLDC motor. In this case, a voltage of 8V to 60V, , Can withstand a current of 50A per second, and can prevent damage due to overcurrent / high temperature.

FIG. 3 is a diagram of a user terminal of the present invention, which can generate a control signal by a user's operation and control a motorized board by communicating with a control unit of the motorized board to transmit a control signal. The user terminal may be a smartphone or a tablet PC installed with an application, and in the case where a short distance communication such as Bluetooth is not smooth in addition to a smart phone, a control signal can be generated using an RC controller.

When the application of the smartphone or the tablet PC is used, the remaining battery level information, the current speed information, the traveling distance information, and the like are displayed on the main screen as shown in FIG. 3, The speed can be controlled by accelerating or decelerating or maintaining the speed. In addition, when using a smartphone, it can be operated in conjunction with a Google Maps application so that it can check its current position and direction information through GPS function.

The user terminal receives the driving information of the power board from the control unit, and displays various driving information on the display. The driving information includes angle information of the road surface measured by the angle sensor, Current traveling speed information, battery remaining amount information, mileage information traveled to the present, and the like. Here, although the angle information is not displayed on the display of the user terminal, when the angular information is controlled by the constant speed mode to be described later, the electric board can be driven at a constant speed using the angle information.

The user can set the operation mode of the power board by the operation of the user terminal, and the operation mode can be selected as either the normal mode or the constant speed mode. The normal mode is a mode in which the user operates the speed change scroll displayed on the user terminal with the finger to decelerate or accelerate the speed of the power board and change the speed. In the constant speed mode, when the scroll is not operated, Or the like.

In the constant speed mode, as described above, the angle information measured by the angle sensor at the bottom of the deck is used. When there is a curvature on the current road surface, the user terminal uses the measured angle information, The current speed of the electric motor is controlled according to the angle, and the control signal is generated to operate either the acceleration or the deceleration.

Specifically, the user terminal generates a control signal for decelerating the current speed if the inclination of the road surface is equal to or less than a predetermined threshold according to the angle information received from the power board, and if the inclination of the road surface is equal to or greater than a predetermined threshold, As shown in Fig. Here, the threshold value can be arbitrarily set by the user.

In the foregoing, the electric board system has been described. In order to explain the control method of the electric board system described above, the following description will be made with reference to FIG. 4 is a flowchart of a method for controlling an electric board system of the present invention.

Referring to FIG. 4, the power board system according to the present embodiment senses driving information by a sensor and transmits the measured driving information to a control unit of the electric board. (Step 310). The running information includes information on the inclination angle of the road surface measured by the angle sensor, information on the current running speed of the power board measured by the speed sensor, information on remaining battery power, mileage information traveled to the present time, and the like.

Next, the control unit of the power board receives the measured running information and transmits the received running information to the user terminal. (Step 320) When the control unit transmits to the user terminal, proximity communication through the communication module of the control unit may be used. For example, you can use Bluetooth, beacon, XBee, ZigBee communication, etc. You can use UART, I2C, USB, CAN-BUS as communication method. In addition, if the user terminal is an RC controller other than a smart phone or a tablet PC, the controller can communicate with the user terminal using RC communication.

Next, the driving information is displayed on the display of the user terminal based on the received driving information, the user arbitrarily operates based on the driving information, and generates the control signal through the operation. (Step 330) The user can set the operation mode of the power board by the operation of the user terminal, and the operation mode can be selected as either the normal mode or the constant speed mode. The normal mode is a mode in which the user operates the speed change scroll displayed on the user terminal with the finger to decelerate or accelerate the speed of the power board and change the speed. In the constant speed mode, when the scroll is not operated, Or the like.

In the constant speed mode, as described above, the angle information measured by the angle sensor at the bottom of the deck is used. When there is a curvature on the current road surface, the user terminal uses the measured angle information, The current speed of the electric motor is controlled according to the angle, and the control signal is generated to operate either the acceleration or the deceleration.

Specifically, the user terminal generates a control signal for decelerating the current speed if the inclination of the road surface is equal to or less than a predetermined threshold according to the angle information received from the power board, and if the inclination of the road surface is equal to or greater than a predetermined threshold, As shown in Fig. Here, the threshold value can be arbitrarily set by the user.

 However, it is not necessary to generate the control signal by operating after receiving the travel information through steps 310 and 320. Even if the power board is in the stopped state, step 330 is first executed to operate the user terminal and generate a control signal can do.

Next, the control unit receives the generated control signal and generates an operation signal of the electric board in accordance with the received control signal. (Step 340). However, the pressure sensor is located at the lower end of the deck to generate the pressure signal by sensing the weight of the user. When the pressure signal is sensed, the control unit generates the operation signal. When the pressure signal is not sensed, An operation signal is generated only when the user does not generate an operation signal, and the motor is operated. Therefore, an accident that the electric board may be operated due to erroneous operation of the user terminal can be prevented.

Next, the step of rotating the motor with the generated operation signal and operating the power board is included. (Step 350)

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined in the appended claims. It will be possible.

10: Deck
20: Wheels
30: Motor
40:
100: Power board
200: user terminal

Claims (8)

An electric board including a deck on which a user mounts a foot, a wheel connected to a lower end of the deck, a motor for rotating the wheel, a sensor for sensing driving information including angle information, and a battery for supplying power;
And a user terminal for receiving the travel information and setting an operation mode selected as one of a constant speed mode and a normal mode of the power board according to a user's operation and generating a control signal according to the operation mode,
Wherein the constant speed mode is a mode in which the electric power board transmits the angle information to the user terminal and the user terminal is controlled to operate at any one of the current speed of the power board in accordance with the inclination of the road surface, Signal to cause the electric power board to travel at a constant speed.
The method according to claim 1,
Wherein the user terminal generates a control signal for decelerating the current speed when the inclination of the road surface is equal to or less than a predetermined threshold according to the angle information received from the power board,
And generates a control signal for accelerating the current speed if the inclination of the road surface is equal to or greater than a predetermined threshold value.
The method according to claim 1,
The running information includes:
Wherein the user terminal includes a power board for generating a control signal for limiting a maximum speed of the power board to a predetermined reference value or less if the remaining amount of the battery is less than a predetermined threshold, system.
The method according to claim 1,
The sensor for sensing the traveling information includes:
And a pressure sensor for measuring pressure, wherein the motor is operated when a user is aboard the deck and pressure is sensed.
A control method of an electric power board system including a user terminal and an electric power board operating according to a control signal of the user terminal,
The power board operates according to a control signal of the user terminal, senses driving information in operation, and transmits the driving information to the user terminal,
The user terminal receives the driving information, sets an operation mode selected as one of a constant speed mode and a normal mode of the electric board according to a user operation, generates a control signal according to the operation mode,
Wherein the constant speed mode is a mode in which the electric power board transmits the angle information to the user terminal and the user terminal is controlled to operate at any one of the current speed of the power board in accordance with the inclination of the road surface, And generating a signal to cause the electric power board to travel at a constant speed.
6. The method of claim 5,
Wherein the user terminal generates a control signal for decelerating the current speed when the inclination of the road surface is equal to or less than a predetermined threshold according to the angle information received from the power board,
And generates a control signal for accelerating the current speed if the inclination of the road surface is equal to or greater than a predetermined threshold value.
6. The method of claim 5,
The running information includes:
Wherein the user terminal includes a power board for generating a control signal for limiting a maximum speed of the power board to a predetermined reference value or less if the remaining amount of the battery is less than a predetermined threshold, Method of controlling the system.
6. The method of claim 5,
The sensor for sensing the traveling information includes:
A method of controlling an electric power board system, comprising a pressure sensor for measuring a pressure, wherein the motor is operated when a user is aboard the deck and pressure is recognized.

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