CN212067689U

CN212067689U - Slide gravity system based on body feeling technology

Info

Publication number: CN212067689U
Application number: CN202020676346.4U
Authority: CN
Inventors: 董方方; 陈珊; 宋楠; 郑祝
Original assignee: Hefei University of Technology
Current assignee: Hefei University of Technology
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2020-12-04
Anticipated expiration: 2030-04-28

Abstract

The utility model discloses a slide gravity system based on body is felt technique, include: the device comprises a controller, a preprocessing module, a Bluetooth module, a power module, a film type pressure sensor, a hub motor, a direct current voltage stabilizing circuit, an electric quantity measuring module and a double-H bridge direct current motor driving circuit; and through carrying increase for ordinary slide on the slide electronic, the body feels the function, can look over the rotational speed of slide through the bluetooth simultaneously. The utility model discloses with strengthen duration and stability in hope to improve user experience.

Description

Slide gravity system based on body feeling technology

Technical Field

The utility model relates to a gravity-feed tank is a gravity-feed tank responds to hardware system for electric skateboard particularly in gravity-feed tank responds to control field.

Background

At present, China is on a developing high-speed passage, and while economy is rapidly developed, short-distance travel tools or short-distance transport tools are not well developed, and products which appear ten years ago are used.

The traditional tools for riding instead of walk, such as bicycles and electric vehicles, are difficult for common people to ride for a long time, and have large physical strength; the latter is very heavy, and is very inconvenient when being carried although the riding is convenient. In the aspect of storage and transportation, most of the prior art is carried by manpower, which consumes much labor and has very low efficiency. Moreover, when fragile articles are carried, the broken goods are easy to be caused by manual carrying. Especially, at the peak of online shopping, packages like sea tides are not helped by express addressees, so that the phenomenon of package retention and even cargo loss occurs. At present, most of electric skateboards on the market have the following problems, such as 1, poor cruising ability; 2. a remote controller is required to be adopted for control; 3. the type is comparatively fixed, and the user is difficult to customize the electric skateboard according to own hobby. These problems are caused by the fact that the function of the electric skateboard as a walk-substituting tool is weakened and the remote controller is used for control, the trouble that the remote controller is lost and cannot be used occurs, and radio pollution is increased. For the above reasons, the skateboard may have a low popularization rate and is inconvenient to use.

Disclosure of Invention

The utility model discloses an overcome the weak point that prior art exists, provide a slide gravity system based on body is felt technique to the time duration and stability are strengthened, and user experience is improved.

The utility model discloses in order to reach above-mentioned invention purpose, adopt following technical scheme:

the utility model relates to a slide gravity system's characteristics based on body is felt technique include: the device comprises a controller, a preprocessing module, a Bluetooth module, a power module, a film type pressure sensor, a hub motor, a direct current voltage stabilizing circuit, an electric quantity measuring module and a double-H bridge direct current motor driving circuit;

the thin film type pressure sensor is connected with the preprocessing module and is used for amplifying the acquired human body data and carrying out A/D conversion processing;

the A0 port of the controller is connected with the preprocessing module and is used for acquiring preprocessed signals and sensing the variation of the gravity center of the human body;

a P03 pin and a P04 pin of the controller are respectively connected with EA1 and EA2 serial ports of the double H bridge direct current motor driving circuit and are used for transmitting the variation of the gravity center of the human body;

the EA interface of the double H-bridge direct current motor driving circuit is connected with the hub motor, so that the hub motor is driven according to the variation of the center of gravity of a human body;

a Sense A interface of the double H-bridge direct current motor driving circuit is connected with a P06 pin of the controller and is used for transmitting the rotating speed of the hub motor acquired in real time;

the TXD end and the RXD end of the Bluetooth module are respectively connected with an RX serial port and a TX serial port of the controller and used for sending the real-time rotating speed of the sliding plate;

the power supply module is connected with the electric quantity measuring module and then connected with the hub motor, so that electric energy is provided for the hub motor;

the power supply module is connected with the electric quantity measuring module and then connected with the direct current voltage stabilizing circuit through a USB (universal serial bus) socket, and is used for converting a 24V direct current power supply into stable 5V voltage and providing the stable 5V voltage for the controller;

and the power supply module is connected with the electric quantity measuring module and is used for displaying the current residual electric quantity.

Slide plate gravity system's characteristics also lie in: the controller is an arduino UNO singlechip; the preprocessing module is an HX-711 chip.

The electric quantity measuring module consists of three resistors R1, R2 and R3, two triodes VT1, VT2 and VT3, four light-emitting diodes LED 1-LED 4 and four diodes VD 1-VD 4;

the high-voltage side of the diode VD4 is connected with the diode VD3, and the low-voltage side of the diode VD4 is connected with the high-voltage side of the triode VT 1; the other high-voltage side of the triode VT1 is connected with the low-voltage side of the light-emitting diode LED1, and the low-voltage side of the triode VT1 is respectively connected with the high-voltage side of the diode VD1 and one end of the resistor R1; the other end of the resistor R1 is connected with the negative pole of the voltage to be measured; the two high-voltage sides of the triode VT2 are respectively connected with the low-voltage side of the diode VD1 and the light-emitting diode LED2, the low-voltage side of the triode VT2 is respectively connected with the high-voltage side of the diode VD2 and one end of the resistor R2, and the other end of the resistor R2 is connected with the negative electrode of the voltage to be measured; two high-voltage measurement of triode VT3 connect diode VD2 and emitting diode LED3 respectively, the low pressure side connecting resistance R3's of triode VT3 one end, the negative pole at the voltage of awaiting measuring is connected to the opposite side of resistance R3.

Compared with the prior art, the invention has the beneficial effects that:

1. the utility model discloses a film formula pressure sensor comes the size of electric current in the regulating circuit, and is more frivolous, preserves the slide as an entertainment item's nature as far as possible.

2. The utility model discloses a slide is connected with the cell-phone through the bluetooth, can see the functioning speed of slide, lets the state of user experience slide more directly perceived.

3. The utility model discloses can carry on ordinary slide, can install based on the slide that oneself likes, richened electric skateboard's variety.

4. The utility model discloses a lithium cell power supply that the energy storage is stronger prolongs the time of endurance greatly, has strengthened this function of slide as the instrument of riding instead of walk.

5. The utility model discloses a body is felt the technique and is controlled, has avoided being the radio pollution who causes with the remote controller, and has lost the problem.

To sum up, the utility model discloses the situation of lacking individualized electric skateboard on the current market has been changed to duration and stability have been strengthened, thereby can let the user install this kind of hardware on the slide that oneself likes, improved the user experience who uses electric skateboard, and can really use it as the instrument of riding instead of walk that is the same, popularize this motion of slide more.

Drawings

FIG. 1 is a plan view of the present invention mounted on a skateboard;

FIG. 2 is a schematic view of the present invention mounted on a skateboard;

FIG. 3 is a flow chart of the present invention;

FIG. 4 is a circuit diagram of the sensor and the HX711 chip used in the present invention;

FIG. 5 is a schematic diagram of a voltage divider circuit employed in the present invention;

fig. 6 is a schematic circuit diagram of the electric quantity display module of the present invention;

fig. 7 is a schematic view of the HC-06 module of the present invention connected to an arduino board.

The number in the figure is 1, the surface of a common skateboard; 2. no power bridge; 3. a standard hexagonal nut; 4. standard hex bolts; 5.8352 an in-wheel motor; 6. a common unpowered wheel; 7. the control box (comprising a lithium battery, an arduino board, a drive board and a Bluetooth module); 8. a standard dome bolt; 9. a standard hexagonal nut; 10. a thin film pressure sensor.

Detailed Description

In this embodiment, a slide gravity system based on body is felt technique includes: the device comprises a controller, a preprocessing module, a Bluetooth module, a power module, a film type pressure sensor 10, a hub motor, a direct current voltage stabilizing circuit, an electric quantity measuring module and a double-H bridge direct current motor driving circuit; the schematic diagram of the scooter is shown in fig. 1 and fig. 2, the front two ordinary unpowered wheels 6 of the ordinary scooter are replaced by a hub motor 5, a unpowered bridge 2 matched with a hub is fixed by a standard hexagon nut 3 and a standard hexagon bolt 4, a control box 7 is embedded under the surface 1 of the ordinary scooter and is fixed by a standard dome bolt 8 and a standard hexagon nut 9, and a lithium battery, an arduino plate, a drive plate and an HC-06 Bluetooth module are arranged in the control box 7. Data input is performed by the film type pressure sensor 10 installed on the front and rear plate surfaces, so that a common skateboard is expected to be modified into an electric body sensing skateboard.

The specific implementation flowchart of this embodiment is shown in fig. 3 below, and the entire hardware system uses the arduino board as a core, and is connected with a voltage dividing module, a bluetooth module, and a driving module.

The film type pressure sensor 10 is connected with the preprocessing module and used for amplifying the acquired human body data and carrying out A/D conversion processing; the preprocessing module adopts an HX711 chip, a data amplification module and an A/D conversion module are integrated in the preprocessing module, the precision of the preprocessing module is high, and the preprocessing module is specially designed for pressure measurement. The positive pin of the film-type pressure sensor 10 is connected with the INNA pin of the HX-711 chip, and the negative pin is grounded, and the specific circuit diagram is shown in FIG. 4.

An A0 port of the controller is connected with the preprocessing module and is used for acquiring preprocessed signals and sensing the variation of the gravity center of the human body; the controller adopts an arduino UNO singlechip, and receives the preprocessed human body data through a simulation data input port A0. Before programming, experiments are carried out on the change of the body gravity center of the human body in different postures and the acceleration which can be born by the human body. After receiving the preprocessed data, it is internally compared with experimental data and the in-wheel motor 6 is controlled according to the experimental data.

A P03 pin and a P04 pin of the controller are respectively connected with EA1 and EA2 serial ports of the double H bridge direct current motor driving circuit and are used for transmitting the variation of the gravity center of a human body; the P03 and P04 pins are used as analog signal output serial ports of the controller, and transmit internally processed data to the double H bridge direct current motor driving board to provide data for controlling the rotating speed of the motor.

The EA interface of the double H-bridge direct current motor driving circuit is connected with the hub motor, so that the hub motor is driven according to the variation of the center of gravity of a human body. The operating frequency of the hub motor 6 is controlled according to the processed data, and the acceleration and deceleration of the slide plate can be realized.

A sensor A interface of the double H-bridge direct current motor driving circuit is connected with an A1 pin of the controller and is used for transmitting the rotating speed of the hub motor acquired in real time; sense A is a drive plate current feedback detection interface, converts the rotating speed of the motor into actual speed through connection with A1, and then transmits the actual speed to the Bluetooth module to feed back to the mobile phone.

And the TXD end and the RXD end of the Bluetooth module are respectively connected with an RX serial port and a TX serial port of the controller and used for sending the real-time rotating speed of the sliding plate. As shown in fig. 7, the initial code of the bluetooth connection is burned into the HC-06 bluetooth module by the controller, the baud rate of the bluetooth connection is adjusted to 9600, and the connection between the mobile phone and the bluetooth module is performed. And receiving the converted speed of the motor at the moment through the RXD and the TXD interfaces, and transmitting the speed to the mobile phone.

The power supply module is connected with the electric quantity measuring module and then connected with the hub motor 6, so that electric energy is provided for the hub motor 6;

the power supply module is connected with the electric quantity measuring module and then connected with the direct current voltage stabilizing circuit through the USB interface, and is used for converting a 24V direct current power supply into stable 5V voltage and providing the stable 5V voltage for the controller. As shown in fig. 5, a voltage of 24V is applied, and the voltage is transformed into a stable voltage of 5V through a load resistor R.

The power supply module is connected with the electric quantity measuring module and used for displaying the current residual electric quantity. The electric quantity measurement is displayed by three LED lamps, and different electric quantity residual is respectively represented. The 24V lithium battery is adopted for power supply, so that the capacity is larger, the endurance capacity is stronger, and a specific connection diagram is shown in fig. 6.

In this embodiment, the electric quantity measuring module is composed of three resistors R1, R2 and R3, three triodes VT1, VT2 and VT3, four light emitting diodes LED1 to LED4 and four diodes VD1 to VD 4.

The high-voltage side of the diode VD4 is connected with the diode VD3, and the low-voltage side of the diode VD4 is connected with the high-voltage side of the triode VT 1; the other high-voltage side of the triode VT1 is connected with the low-voltage side of the light-emitting diode LED1, and the low-voltage side of the triode VT1 is respectively connected with the high-voltage side of the diode VD1 and one end of the resistor R1; the other end of the resistor R1 is connected with the negative pole of the voltage to be measured; the two high-voltage sides of the triode VT2 are respectively connected with the low-voltage side of the diode VD1 and the light-emitting diode LED2, the low-voltage side of the triode VT2 is respectively connected with the high-voltage side of the diode VD2 and one end of the resistor R2, and the other end of the resistor R2 is connected with the negative electrode of the voltage to be measured; two high-voltage tests of the triode VT3 are respectively connected with the diode VD2 and the light emitting diode LED3, the low-voltage side of the triode VT3 is connected with one end of the resistor R3, and the other side of the resistor R3 is connected with the negative electrode of the voltage to be measured.

To sum up, the utility model discloses the remote controller that uses common electric skateboard on the market is felt the technique and is replaced with the body, has increased the recreational of slide, has avoided losing the inconvenience of bringing because of the remote controller to adopt large capacity lithium cell power supply, improved duration. The user can use the hardware system to carry different sliding plates, thereby widening the personalized aspect of the electric sliding plate. The utility model can increase the popularization of the skateboard exercise and the application of the electric skateboard.

Claims

1. The utility model provides a slide gravity system based on body feels technique which the characterized in that includes: the device comprises a controller, a preprocessing module, a Bluetooth module, a power module, a film type pressure sensor, a hub motor, a direct current voltage stabilizing circuit, an electric quantity measuring module and a double-H bridge direct current motor driving circuit;

2. The skateboard gravity system of claim 1, wherein: the controller is an arduino UNO singlechip; the preprocessing module is an HX-711 chip.

3. The skateboard gravity system of claim 1, wherein: the electric quantity measuring module consists of three resistors R1, R2 and R3, two triodes VT1, VT2 and VT3, four light-emitting diodes LED 1-LED 4 and four diodes VD 1-VD 4;