KR101787063B1 - Self-powered smart bicycle being capable of visible light communication - Google Patents

Abstract

The optical communication-enabled self-generating type smart bicycle according to the present invention comprises: a wheel light mounted on both wheels of the smart bicycle, the wheel light expressing a specific shape of the wheel as an image to be displayed; (Hereinafter referred to as transmission data) to be transmitted through a change of a specific area in a specific shape in the display image and transmitting the data through a visible light communication method; And a generator for generating electric power to supply the electric power to the wheel light and the wheel light control unit.

Description

[0001] SELF-POWERED SMART BICYCLE BEING CAPABLE OF VISIBLE LIGHT COMMUNICATION [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a smart bicycle capable of visible light communication and using a self-generating power source.

Visible Light Communication (VLC), which is one of various wireless communication technologies, is a wireless communication method in which a signal is transmitted in a visible light having a wavelength of 380 to 780 nanometers and is continuously developed due to recent development of light emitting diode technology have.

Particularly, such a visible light communication technology is applied to various types of displays such as various signage panels and light pipes that emit visible light in addition to lighting devices.

For example, various information can be provided to a user having a visible light communication receiver through a display device included in a TV, a monitor, a smart device, or the like.

On the other hand, as the economic level and quality of life improve, the population enjoying various sports as leisure activities is gradually increasing, and bicycle operation such as commuting by using bicycle is gradually increasing along with exercise using bicycle.

As a result, bicycles are equipped with LEDs to express individual personality and to support safe operation. In addition to LEDs, various device rods that use power supply based on bicycles are attached. Therefore, when we consider smart bikes, we need an energy harvesting technique that draws the power of the LEDs and various kinds of bicycle-driven devices to the independent power generation method of the bicycle itself. Based on this, we supply stable power to various devices It is necessary to develop a technique for

However, in the case of the related art, since the form of the transceiver is limited to the above-described devices without reflecting such a trend, there is a shortage of products that meet the needs of various users.

In this regard, Korean Patent Laid-Open Publication No. 10-2016-0100810 (entitled "Bicycle Intelligent Assistive System") is used as an intelligent control system, a display control system and an auxiliary device in place of walking at a medium distance and a short distance, The present invention discloses a technique that provides functions such as user real time satellite position search, road image screen display, driving data recording, bicycle theft prevention, illumination sound warning, and broadcast music playback.

The embodiment of the present invention applies visible light communication technology to a bicycle for a smart bicycle to perform communication between bicycles (Bike2Bkie), transmits information through a specific area change of a shape when displaying a specific shape on a wheellight , Smart bike technology that can be used as a power source in a bicycle using various energy harvesting techniques (saddle / pedal / cradle / brake in a bicycle, wheeled magnet generator, hub dynamo generator, etc.).

It should be understood, however, that the technical scope of the present invention is not limited to the above-described technical problems, and other technical problems may exist.

As a technical means for achieving the above technical object, an optical communication-enabled self-generating type smart bicycle according to an embodiment of the present invention is mounted on both wheels of the smart bicycle and displays a specific shape (Hereinafter, referred to as " transmission data ") to be transmitted through a change in the specific area in the specific shape when the wheellight displays the displayed image, And a generator mounted on both wheels of the smart bicycle and supplying electric power to the wheel light and the wheel light control unit using a piezo-based energy harvest, a wheel-attached magnet generator, and a hub dynamo generator.

The wheellight control unit modulates the transmission data at a blinking period of the display image, and controls the afterimage blinking period of the display image by sensing and considering the wheel speed.

The wheellight control unit may transmit the transmission data through a visible light communication method by an invisible data embedded method that includes a transparency value in a hue displayed on the display image.

The transparency applying technique may change transparency by adding a transparency value to at least one of a red value, a green value, and a blue value.

The transparency value changes in the form of a sinusoidal wave at an arbitrary frequency, and the wheellight control unit may output the transmission data by including the transmission data in the display image through the change of the frequency.

And a visible light communication transmitting and receiving unit disposed on at least one of a front surface and a rear surface of the smart bicycle for communication with the surrounding bicycle, wherein the visible light communication transmitting and receiving unit extracts the modulation data when receiving the display image transmitted by the peripheral bicycle , And the extracted modulated data can be changed to transmission data using a demodulation technique corresponding to the modulation technique.

And an internal communication unit for receiving the content corresponding to the display image to be displayed on the wheel light from the external device and transmitting the content to the wheel light control unit.

In the case of the hub dynamo and the wheel-mounted magnet generator, the generator can generate electricity using the stator and the rotor of the rotating body, and the piezoelectric-based energy harvest can also be used as a saddle, pedal, brake, Power can be generated from the mount

And a battery for storing electric power generated from the generator.

The generator may include a bridge circuit for rectifying the power generated from the rotational motion of both wheels and storing the rectified power in the battery.

And a USB charging unit connected to the battery and charging the external device through the generated power.

The battery may supply the stored power to a wheel light mounted on both rotating wheels through a slip ring.

According to any one of the above-mentioned objects of the present invention, not only an aesthetic effect can be expected through a change of a specific area when a specific shape is displayed through a wheel light mounted on both wheels, To the receiving device.

In addition, additional data can be transmitted separately from the displayed image displayed on both wheels by being included in the image signal by the transparency applying method that adds the data to be transmitted as a transparency value to the color, and transmitted to the receiving device.

Particularly, when the frequency of the transparency value is changed and transmission data is transmitted by dividing the display image display area into a plurality of plurality of areas, a larger amount of data can be transmitted faster.

In addition, when the user has a receiving device having a camera, such as a smart phone, a smart pad, a smart watch, etc., the user can perform visible light communication without using the receiving device, The user can easily use the visible light communication without purchasing the display device.

1 is a diagram for explaining an overall system to which a smart bicycle according to an embodiment of the present invention is applied.
2 is a block diagram of a self-generating smart bike capable of optical communication according to an embodiment of the present invention.
FIG. 3 is a diagram illustrating a wheel light in an embodiment of the present invention and an electric power generation using a wheel-mounted magnet generator or a hub dynamo generator.
4 is an exemplary diagram of an expression image in a wheellight.
FIG. 5 is a diagram illustrating an example of data communication using power generation using a piezoelectric-based energy harvest or a break line.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly explain the present invention in the drawings, parts not related to the description are omitted.

Whenever a component is referred to as "including" an element throughout the specification, it is to be understood that the element may include other elements, not the exclusion of any other element, unless the context clearly dictates otherwise.

The present invention relates to a self-generating smart bicycle (1) capable of optical communication.

According to one embodiment of the present invention, when a visible light communication technology is applied to a bicycle to perform communication between bicycles (Bike 2Biee) and a specific shape is displayed on the wheel light 11, A pedal 70, a hand rest 80, and the like can be produced by attaching the hub dynamo 13 and the spokes 16 with a stator (coil) and a rotor (magnet) , And the electric power generated by the piezo-based energy harvest using the brake 90 can be used as a power source.

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

1 is a view for explaining an overall system to which a smart bicycle 1 according to an embodiment of the present invention is applied.

An embodiment of the present invention can perform visible light communication between the smart bicycle 1 and 2 as well as perform visible light communication between the smart bicycle 1 and 2 and the receiving device 100. [

In addition, the smart bicycle 1 may be connected to an external device 100 receiving content corresponding to an image to be displayed (hereinafter referred to as a display image) through a network to transmit and receive data.

Here, the smart bicycle 1 is a concept including not only the two-wheel bicycle shown in FIG. 1, but also all the types of bicycles equipped with pedals such as one-wheel and three-wheel bicycles.

In addition, the receiving device 200 may be a digital device capable of or associated with a camera, such as a smart phone, a smart pad, a smart watch, and a tablet PC. In addition, the receiving device 200 is not limited to the above-described examples, and various types of devices including cameras, such as digital information display (DID) and digital signage such as a touch screen kiosk, have.

In addition, the external device 100 does not necessarily have to be equipped with a camera, and means that a memory, which is a storage area for storing contents of the display image through the wheellight 11, can be provided or linked.

2 is a block diagram of a self-generating smart bicycle 1 capable of optical communication according to an embodiment of the present invention.

The smart bicycle 1 according to an embodiment of the present invention includes a wheel light 11, a wheel light control unit 20, and a generator 30.

The wheel light 11 is mounted on both wheels 10a and 10b of the smart bicycle 1 and expresses a specific shape during the rotation of the wheel 10 as a display image. An example in which the wheel light 11 is mounted on the wheel 10 is shown in Fig.

3 is a view for explaining the wheel light 11 in the embodiment of the present invention.

The wheel lights 11a and 11b and 11 in the embodiment of the present invention are mounted on both wheels 10 of the smart bicycle 1 as seen from the front view of the wheel 10 shown in Fig.

Specifically, the wheel light 11 includes a wheel fixing plate 13 coupled to the outer circumferential surface of the wheel shaft casing 12, an inner circumferential surface of the rim 15 mounted on the tire 14 or a wheel (not shown) 10).

3 is merely an example, and it goes without saying that the number and color of the wheel light 11 can be freely changed according to the setting of the user and the specifications of the smart bicycle 1.

Fig. 4 is an exemplary view of the display image in the wheel light 11. Fig.

As the wheel 10 of the smart bicycle 1 is rotated, the wheel light 11 can display a specific shape as a display image as shown in FIG.

3, the rim 15 of the wheel 10 and the respective wheellights 11 can be recognized by the human eye. However, as the smart bicycle 1 is driven, the wheel 10 rotates As shown in Fig. 4, a specific shape including a pattern, letter, and the like can be displayed as an expression image.

Referring again to FIG. 2, when the wheellight 11 displays the display image, the wheellight control unit 20 displays data (hereinafter, transmission data) to be transmitted through the change of the specific area in the specific shape to the display image And transmit it through a visible light communication method.

Accordingly, the receiving device 200 can receive the display image of the smart bicycle 1 through the camera and extract the modulation data. The receiving device 200 may then convert the modulated data into transmission data using a demodulation method corresponding to the modulation scheme.

The wheel light control unit 20 modulates the transmitted data at a blinking period of the display image, and controls the afterimage blinking period of the displayed image by sensing and considering the speed of the wheel. That is, the wheel light control unit 20 can transmit the high-speed and large-amount transmission data by modulating the display image through blinking to a degree that the human eye can not recognize.

In addition, since the wheel speed control unit 20 can sense and consider the speed of the wheel 10, when the speed of the wheel 10 is high, such as when the smart bicycle 1 is moving at high speed, When the speed of the wheel 10 is slow, the afterimage blinking cycle is controlled to be slower so that the user having the receiving device can transmit the transmission data at a much larger amount and at a higher speed while maintaining the aesthetics.

Meanwhile, in the embodiment of the present invention, the wheellight control unit 20 may include an invisible data embedded method in which the transparency value is included in the colors displayed on the display image, can do.

FIG. 5 shows an example of power production for piezoelectric-based energy harvesting. FIG. 5 is a graph showing an example of converting power into pressure when a pressure is applied to parts such as a saddle, a pedal, a hand rest, Fig.

An embodiment of the present invention may further include a piezoelectric matrice to which a piezoelectric energy harvesting technique is applied, such as a saddle, a hand rest, a pedal, and the like in contact with a user's body.

By using such a piezoelectric element, it is possible to acquire additional electric power by collecting, for example, energy due to vibration and pressure generated when the user's both hands touch the handle, and storing the collected energy in the battery 35 as electric energy.

The wheellight control unit 20 according to an embodiment of the present invention may include a transparency value alpha in an original color displayed in one pixel of the display image and transmit the transparency value alpha through a color P2 including the transparency value alpha More and more data can be transmitted.

At this time, the transparency can be changed by adding a transparency value? To at least one of the red value R, the green value G and the blue value B corresponding to the original color P2.

For example, transparency may be changed by adding the transparency value? To both the red value R, the green value G and the blue value B corresponding to the original color P2. At this time, it is preferable that the change of the transparency is changed within a range that the human can not perceive.

Also, the transparency value alpha can be changed to a sinusoidal wave form at an arbitrary frequency, and the frequency of the transparency value alpha can be selectively changed by the wheellight control unit. That is, the wheel light control unit 20 can output the transmission data by including the transmission data in the display image through the change of the frequency at the transparency value?.

Accordingly, an embodiment of the present invention can transmit not only the blinking of the original color, but also a larger amount of data by adjusting the transparency value [alpha].

Also, the wheellight control unit 20 according to an embodiment of the present invention may transmit data through a sequential scalable 2D code. That is, the continuously expanding two-dimensional code can be hidden and included in the display image in a state in which the display image is displayed so as to correspond to the determined content.

The two-dimensional code is a graphic image (for example, bar code, color code, QR code, etc.) storing information in both the horizontal direction and the vertical direction.

One embodiment of the present invention can provide higher bit rate along with distance and angular freedom through this continuously expanding two-dimensional code.

The continuously expanding two-dimensional code can be composed of a QR code or a color code each of which is data encoded together with a visual expression image on the wheel 10 on which the wheel light 11 is mounted, or a combination thereof.

Continuously expanding two-dimensional code is one of the promising modulation techniques that has high communication performance by increasing the symbol rate per bit and lowering the color interference.

In addition, one embodiment of the present invention is a method of sensing a distance between a smart bicycle 1 and a receiving device 200 or other smart bicycle 1, After dividing the code, it can be included in the display image and output.

For example, when the distance between the smart bike 1 and the receiving device 200 exceeds the first reference distance w1, the smart bicycle 1 can transmit the QR code or color code using only the entire area If the first reference distance is less than the first reference distance w1 or exceeds the second reference distance w2, the smart bicycle 1 divides the entire area into four areas and uses the area to include a QR code or a color code in the display image .

At this time, in the case of the remote transmission / reception which is divided into a plurality of areas of the embodiment Sms of the present invention, the QR code and the color code may be combined so that more various transmission data can be transmitted and received.

In the case of the smart bicycle 1, since the wheel 10 is circular, the wheel-light control unit 20 does not use the outer side portion of the wheel 10 but uses only the central portion of the wheel 10, Region, four regions, or the like, and the continuous expanding two-dimensional code can be divided and included in the display image.

Alternatively, the continuously expanding two-dimensional code is divided into smaller portions on the outer side surface of the wheel 10 and is included in the display image. In the center portion of the wheel 10, The dimension code can be adjusted and included in the display image.

In addition, the wheellight control unit 20 can display the displayed image in the divided areas in different areas at different frames per second (fps, frame per second). For example, it is possible to divide each divided region into two regions having a speed of 15 fps and a frame rate of 30 fps, and output an image with different frames per second.

Accordingly, the receiving device 200 can selectively receive the display image according to the performance of the camera. For example, a smartphone with a slightly lower performance may only receive an area corresponding to 15 fps, while a high-performance smartphone may receive only areas with a 30 fps, or in some cases, both 15 fps and 30 fps.

Referring again to FIG. 2, the smart bicycle 1 according to an embodiment of the present invention may further include a visible light communication transmitting / receiving unit 40.

The visible light communication transceiver 40 may be disposed on at least one of the front and rear surfaces of the smart bicycle 1 for communication with the peripheral smart bicycle 1. [

The visible light communication transmitting and receiving unit 40 extracts the modulation data when receiving the display image transmitted by the peripheral smart bicycle 1 and changes the extracted modulation data into transmission data by using a demodulation technique corresponding to the modulation technique have.

Accordingly, the smart bike 1 according to the embodiment of the present invention can transmit a message to the smart bike 2 or the receiving device 200 located at the front or rear side, .

If the smart bike 2 or the receiving device 200 receiving such a message can transmit a warning message to the user through a method such as flashing a voice or a front flash.

In addition, the smart bicycle 1 according to an embodiment of the present invention may further include an internal communication unit 50.

The internal communication unit 50 can receive the content corresponding to the display image to be displayed on the wheellight 11 from the external device 100 in cooperation with the external device 100 and transmit the content to the wheellight control unit 20.

Accordingly, the user of the smart bicycle 1 can display the photograph or image contents stored in the external device 100 such as his smart phone on the wheel 10 through the wheel light 11.

The smart bicycle 1 according to an embodiment of the present invention is mounted on both wheels 10 and generates electric power from rotation of the wheel 10 to supply electric power to the wheel light 11 and the wheel light control unit 20 And a generator (30) for generating a control signal.

Due to the rotation of the wheel 10, the generator 30 can generate AC power of about 2.4 V to about 3 W at 6 V per side of the wheel 10. The electric power thus developed is stored in the battery 35.

At this time, the generator 35 can rectify the AC power generated from the rotational motion of both the wheels 10 through the DC-DC converter for stable DC power supply and charging, and store the AC power in the battery.

And the battery 35 can supply the stored power to the wheel light 11 mounted on both rotating wheels 10 through a slip ring. Through the slip ring, the smart bicycle 1 according to the present invention can supply electric power to the wheel light 11 of both the wheels 10 as well as the main body, without twisting the electric wires.

In addition, an embodiment of the present invention may further include a USB charging unit 33 connected to the battery 35 and charging the external device 100 through the generated power.

As described above, the present invention stores the generated power in the battery 35 for stable use of the electric power, and uses the piezoelectric-based energy harvest, the wheel-mounted magnet generator, and the hub dynamo generator to generate the power generated through the USB charging unit 33, The device 100 can be charged.

Meanwhile, the smart bicycle 1 according to an embodiment of the present invention may further include a sensor unit (not shown).

Through the sensor unit, driving state information such as acceleration, deceleration, vibration, stopping state, inclination can be sensed and provided to the user. Alternatively, when the sensor unit includes the CDS sensor, the brightness of the headlight of the smart bicycle 1 may be automatically adjusted by acquiring the ambient brightness information.

On the other hand, since it is common to include such a sensor unit in a smart phone or the like, if the sensor unit is included in the external device 100, the sensed information may be acquired through the interlocking function with the external device 100 .

2 may be implemented in hardware such as software or an FPGA (Field Programmable Gate Array) or ASIC (Application Specific Integrated Circuit), and may perform predetermined roles can do.

However, 'components' are not meant to be limited to software or hardware, and each component may be configured to reside on an addressable storage medium and configured to play one or more processors.

Thus, by way of example, an element may comprise components such as software components, object-oriented software components, class components and task components, processes, functions, attributes, procedures, Routines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables.

The components and functions provided within those components may be combined into a smaller number of components or further separated into additional components.

According to one embodiment of the present invention, when a specific shape is displayed through the wheel light 11 mounted on both wheels 10, not only an aesthetic effect can be expected through a change of a specific area, The transmission data may be transmitted to the receiving device 200.

In addition, by transmitting the data to be transmitted to the receiving device 200 in a video signal by a transparency applying method that adds data to be transmitted to a color transparency value, additional data Lt; / RTI >

Particularly, when the frequency of the transparency value is changed and transmission data is transmitted by dividing the display image display area into a plurality of areas, a larger amount of data can be transmitted faster.

In addition, when a user has a receiving device 200 having a camera, for example, a smart phone, a smart pad, a smart watch, etc., since the user can perform visible light communication using the same, It is possible to easily use visible light communication without purchasing a visible light communication receiver.

While the methods and systems of the present invention have been described in connection with specific embodiments, some or all of those elements or operations may be implemented using a computer system having a general purpose hardware architecture.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

1, 2: Smart Bicycle
10: Wheel
11: Wheel light
20: Wheel light control unit
30: generator
33: USB charging unit
35: Battery
40: visible light communication transmitting /
50: internal communication section
60: Saddle
70: Pedal
80: Hand rest
90: Brake
100, 200: external device, receiving device

Claims (13)

In a self-generating type smart bicycle capable of visible light communication,
A wheel light mounted on both wheels of the smart bicycle and expressing a specific shape of the wheel as a display image,
A wheel light controller for transmitting the data to be transmitted (hereinafter referred to as transmission data) through the change of the specific area in the specific shape to the display image and transmitting the display image through the visible light communication system when the wheellight displays the display image,
And a generator mounted on both wheels of the smart bicycle and generating electric power from rotation of the wheel to supply electric power to the wheel light and the wheel light control unit. The method according to claim 1,
A saddle, a pedal, a brake, an electric motor, and the like capable of generating electric power or generating a pressure in the bicycle body through a wheel-mounted magnet generator and a hub dynamo generator that generate electricity from the rotary motion of the both wheels but through a stator (coil) A smart bike featuring energy harvesting and power supply based on bicycle piezoresistive materials that produce and distribute multiple distributed power sources based on pressure sources from hand holders. The method according to claim 1,
Wherein the smart bicycle is capable of transmitting one or more communication and control data using the brake metal wire of the smart bicycle and associating the control data with visible light communication. The method according to claim 1,
Wherein the wheel light control unit modulates the transmission data at a blinking period of the display image, and controls the afterimage blinking period of the display image by sensing and considering the wheel speed. The method according to claim 1,
Wherein the wheel light control unit transmits the transmission data through a visible light communication scheme by an invisible data embedded method for including a transparency value in a hue displayed on the display image. 6. The method of claim 5,
Wherein the transparency applying technique changes transparency by adding a transparency value to at least one of a red value, a green value, and a blue value. 6. The method of claim 5,
Wherein the transparency value changes in the form of a sinusoidal wave of an arbitrary frequency and the wheel light control unit outputs the transmission data by including the transmission data in the display image by changing the frequency. The method according to claim 1,
Further comprising a visible light communication transceiver disposed on at least one of a front surface and a rear surface of the smart bicycle for communication with the surrounding bicycle,
Wherein the visible light communication transmitting and receiving unit extracts modulation data when receiving the display image transmitted by the peripheral bicycle and changes the extracted modulation data into transmission data using a demodulation technique corresponding to the modulation technique. . The method according to claim 1,
Further comprising an internal communication unit for receiving, from the receiving device, a content corresponding to the displayed image to be displayed on the wheel light and transmitting the received content to the wheel light control unit. The method according to claim 1,
And a battery for storing electric power generated from the generator. 11. The method of claim 10,
Wherein the generator includes a bridge circuit for rectifying the power generated from the rotational motion of both wheels and storing the rectified power in the battery. 11. The method of claim 10,
Further comprising a USB charging unit connected to the battery and charging the receiving device with the generated electric power. 11. The method of claim 10,
Wherein the battery supplies the stored electric power to a wheel light mounted on both rotating wheels through a slip ring.

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