KR20090006263A - Wireless power transmission system with wireless power transmission device for wireless peripherals and control method thereof - Google Patents

Abstract

The present invention relates to a wireless power transmission system, and more particularly, to operate a peripheral device that is an input device or an output device using an induction magnetic field so that data can be transmitted and received and contactlessly provided without a complicated wire. The present invention relates to a wireless power transmission system having a wireless power transmission device for a wireless peripheral device for ease of use, and a control method thereof.

The present invention for this purpose is provided with a wireless power transmission device 20 is provided to receive power from the computer 10 and transmit and receive a signal including a power signal or a data signal, the contactless with the wireless power transmission device 20 The peripheral device 30 of the wireless communication for receiving power and transmitting and receiving data by the wireless power transmission of the wireless power transmission device 20 is to control the signal communication with the computer 10 and the wireless power transmission device 20 A transmission device control unit 21 for controlling the operation of the control unit 21, and converts an output signal consisting of a power signal and a data signal to the peripheral device 30 under the control of the transmission device control unit 21, thereby performing a primary side antenna 231. Resonant converter (23) for transmitting to is characterized in that it is included.

Description

WIRELESS POWER TRANSFER SYSTEM WITH WIRELESS POWER TRANSFER FOR WIRELESS DEVICES IN PERSONAL AREA NETWORK AND CONTROL METHOD THEREOF}

The present invention relates to a wireless power transmission system, and more particularly, a wireless power transmission apparatus for a wireless peripheral device for transmitting and receiving data and supplying power without contact by operating a peripheral device that becomes an input device or an output device using an induction magnetic field. It relates to a wireless power transmission system having a and a control method thereof.

Generally, a computer is a device configured to read and process itself according to a command input from a user.

Such a computer includes a keyboard 520 and a mouse 530 that are connected by a computer main body 510 and a wired 521 and 531 as shown in FIG. 4, which shows Korean Patent No. 364327 (rotator for a computer keyboard). A signal is input from the user through an input device such as), and the processed content is output to the output device serving as the monitor 540.

However, such a computer according to the related art has a problem in that wiring is complicated and difficult to use because a peripheral device is provided to be connected by a plurality of lines. Especially in most offices and homes, the computer main body 510 is placed under the desk, while the monitor 540, keyboard 520 and mouse 530 are placed on the top of the desk for the user's convenience. There is a drawback that it is not easy to organize.

Literature Information of the Prior Art

Republic of Korea Patent No. 364327 published on November 06, 2000.

The wireless power transmission system according to the present invention for solving the above problems is to operate a peripheral device that becomes an input device or an output device using an induction magnetic field, and transmits and receives data in a contactless state and supplies a complex wire. The purpose is to make it easy to use without using.

In addition, the induction magnetic field for power transmission and data transmission is implemented using an LC resonant converter to implement a wireless power transmission device that operates stably, and even when connected to a number of peripheral devices to distinguish and transmit the signal corresponding to the peripheral device It is an object to use together a plurality of peripheral devices that are devices and output devices.

Furthermore, there is an object to make it easy to check the operation of the distinguished peripheral device to be displayed by the LED of the peripheral device that the peripheral is operating.

Wireless power transmission system having a wireless power transmission device for a wireless peripheral device according to the present invention for achieving the above object is provided to receive power from the computer 10 and transmit and receive a signal including a power signal or a data signal A wireless power transmitter 20 is provided, and a peripheral device 30 for wireless communication that receives power and transmits and receives data by wireless power transmission without contact with the wireless power transmitter 20 is provided. Device 20 is provided with a transmission device control unit 21 for controlling the signal communication with the computer 10 and the operation of the wireless power transmission device 20, and by the control of the transmission device control unit 21 The peripheral device 30 is characterized in that it comprises a resonant converter 23 for converting the output signal of the power signal and the data signal and transmits to the primary antenna (231).

Accordingly, the wireless power transmitter 20 receives an output signal consisting of a power signal and a data signal under the control of the transmitter control unit 21 and transmits the output signal to the resonance converter 23 and has a bootstrap gate drive. A signal detector for detecting a data signal transmitted from the peripheral device 30 connected to the driver 24 and the resonant converter 23 to the primary side antenna 231, and transmitting the detected signal to the transmission device controller 21; 25) may be further included.

In addition, the peripheral device 30 receives power from the induced electromotive force generated by receiving an output signal from the secondary side antenna 321 to the induction magnetic field generated by the primary antenna 231 of the wireless power transmitter 20. Connected to the secondary measurement circuit unit 32 and the secondary measurement circuit unit 32 for converting the data signal to supply charging power to the battery cell 33, the primary antenna 231 and the secondary antenna 321 Peripheral device control unit 31, and the peripheral device control unit for processing the data transmitted and received by, and transmits the data signal for the state of the peripheral device 30, the input signal, the unique ID data value of the peripheral device (30) 31 is provided with a charge control unit 34 and a signal processing control unit 35, the charge control unit 34 is provided to charge the battery cell 33 the power supplied from the secondary measurement circuit unit 32. The signal processing control unit 35 May convert the signal for the unique ID data value stored in the device memory unit 351 and the data signal input by the user to be transmitted to the wireless power transmitter 20.

The wireless power transmitter 20 is provided with a USB module 22 connected to the device USB port 221 connected to the USB port of the computer 10 to control the USB communication with the computer 10, The transmitter control unit 21 is provided to control the signal communication of the USB module 22, the wireless power transmitter 20 is connected to the USB port of the computer 10, the transmitter control unit 21. When the power is supplied from the computer 10, the wireless power transmitter 20 controls a control signal for calling a unique ID of the peripheral device to search for a peripheral device capable of transmitting and receiving through the primary antenna 231. ) May further include a unique ID reading unit 26 for determining the peripheral device unique ID data value transmitted from the peripheral device 30 by the control of the transmission device controller 21.

In particular, the wireless power transmission device 20 is provided with a status display LED (27) indicating the transmission and reception status of the data, the status display LED (27) is USB- to display the USB data transmission and reception status with the computer 10 An LED 271 and a device LED 272 indicating a data transmission / reception state with the peripheral device 30 may be included.

Furthermore, a control method of a wireless power transmission system having a wireless power transmission device for a wireless peripheral device according to the present invention,

A power supply step of supplying power to the wireless power transmitter 20 connected to the computer 10 and the USB port (S01);

Peripheral search step (S02) for transmitting the call request signal of the peripheral unique ID to the peripheral device for the search of the peripheral device under the control of the transmission device control unit 21 (S02);

A unique ID data signal transmitting step (S03) of transmitting a unique ID data value of the peripheral device 30 by a unique ID call signal transmitted from the wireless power transmitter 20 in the peripheral device 30;

Peripheral device discrimination step (S04) to determine the state, type for the peripheral device by analyzing the unique ID data value transmitted from the peripheral device 30 in the wireless power transmission device (20);

A wireless power transmission step (S05) of transmitting driving power to the peripheral device 30 through the primary antenna 231 under the control of the transmission device control unit 21;

Peripheral device information transmission step (S06) for transmitting data on the state and type for the peripheral device 30 to the computer 10 by a USB transmission method;

It is characterized in that it comprises a peripheral device operation waiting step (S07) to wait for receiving the data signal input through the peripheral device 30 by the user.

By operating the peripheral device as an input device or an output device by using an induction magnetic field by the wireless power transmission system according to the present invention provided as described above, since it transmits and receives data in a non-contact state and does not use complicated wires It does not have the advantage of ease of use.

In addition, since the LC resonant converter is used as the induction magnetic field for power transmission and data transmission, it is possible to implement a wireless power transmission device that operates stably, and to distinguish and transmit a signal corresponding to the peripheral device even when connected to a plurality of peripheral devices. Therefore, there is an advantage that can be applied together with a plurality of peripheral devices that are input devices and output devices.

Furthermore, there is an effect of easily identifying the operation of the distinguished peripherals by displaying the LEDs of the peripherals as to which peripherals are operated.

Hereinafter, with reference to the accompanying drawings will be described in detail.

1 is a schematic illustration of the wireless power transmission system of the present invention, Figure 2 is a block diagram of the wireless power transmission system of the present invention, Figure 3 shows a control flow chart for the wireless power transmission system of the present invention, respectively. .

That is, a wireless power transmission system (A) having a wireless power transmission device for a wireless peripheral device according to the present invention receives the power from the computer 10, as shown in Figures 1 to 3, a signal including a power signal or a data signal Is provided with a wireless power transmission device 20 is provided to transmit and receive, the wireless power transmission device 20 is provided with a peripheral device 30 of wireless communication for receiving power and transmitting and receiving data by wireless power transmission of a contactless will be.

The wireless power transmission device 20 is provided with a transmission device control unit 21 for controlling the signal communication with the computer 10 and to control the operation of the wireless power transmission device 20, the transmission device control unit 21 ), A resonance converter 23 converting an output signal consisting of a power signal and a data signal to the peripheral device 30 and transmitting the converted signal to the primary side antenna 231 is included. Therefore, the transmission control unit 21 is provided with a power control module for receiving power supplied from the computer 10 and transmitting power to the peripheral device in a non-contact state, and also by the unique ID data value of the peripheral device, determination of the state of the peripheral device, computer A peripheral device control module may be provided, including a transmission control for transmitting information of a peripheral device and a signal data such as data input from the peripheral device and data provided from a computer to be transmitted to the peripheral device.

The wireless power transmitter 20 receives an output signal consisting of a power signal and a data signal under the control of the transmitter control unit 21 and transmits the output signal to the resonance converter 23 and includes a bootstrap gate drive. A signal connected to a gate driver 24 and the resonance converter 23 and connected to a primary antenna 231 detects a data signal transmitted from the peripheral device 30 and transmits the signal to the transmission device controller 21. The detection unit 25 is further included.

In addition, the peripheral devices 30 and 30 ′ may be provided with input means. In the example of FIGS. 1 and 2, the keyboard 30 and the mouse 30 ′ are shown as an example, but the processor is configured to process the input data. If changed to be provided as an input device, such as a scanner, a camera, a microphone, a sensor. It can also be provided as an output device such as a printer, a fax, a speaker and an operating device. In the case of devices using high power such as scanners, cameras, printers, fax machines, and operating devices, the battery cells with high capacity are provided with high capacity, and when not using peripheral devices, the charging operation is performed at all times to easily realize high capacity driving operation. It may be provided to be able to.

Looking at the configuration of such a peripheral device 30, 30 ', largely the wireless power transmission device 20 connected to the computer 10 and the data transmission and reception processing portion for contactless power transmission and data transmission, and is operated as a conventional peripheral device The paper may be divided into ordinary working parts and the like. The conventional peripheral operating portion may thus be configured in a configuration known as a conventional configuration. Therefore, the main features of the peripheral device 30, 30 'applied to the wireless power transmission system (A) according to the present invention as a main feature of the configuration for transmitting and receiving and converting power and data signals with the wireless power transmission device 20 It can be configured.

Thus, when the configuration of the peripheral device 30, 30 'such as, the secondary side antenna 321 (321) (output signal to the induction magnetic field generated by the primary side antenna 231 of the wireless power transmitter 20) ( Secondary measurement circuitry (32, 32 ') is provided for converting the induced electromotive force received and received at 321' into power and data signals.

And connected to the secondary measurement circuit unit 32 and 32 'to supply charging power to the battery cells 33 and 33', and to the primary side antenna 231 and the secondary side antenna 321 and 321 '. Peripheral device control unit for processing data transmitted and received by the control unit, and transmits a data signal for the state of the peripheral device 30, 30 ', the input signal, the unique ID data value of the peripheral device (30, 30') 31 and 31 'are provided.

The peripheral controllers 31 and 31 ′ are provided as charge controllers 34 and 34 ′ and signal processing controllers 35 and 35 ′, and the charge controllers 34 and 34 ′ are the two. The battery cells 33 and 33 'are charged to charge the electric power supplied from the difference measuring circuits 32 and 32', and the signal processing control sections 35 and 35 'are provided in the device memory section 351 ( A signal for the unique ID data value stored in 351 'and a data signal input by the user are converted to be transmitted to the wireless power transmitter 20.

In addition, such peripheral devices 30 and 30 'are input or output units (for example, input and output units such as a keyboard, a mouse button, a printing device unit, a scanner unit, etc.) for processing processes such as an original keyboard or a mouse, and these input / output units. And a signal processing unit 35 or a 35 'of a peripheral device, and a signal conversion unit for signal conversion.

In addition, the wireless power transmission apparatus 20 may be provided to transmit and receive data in a variety of ways generally known and connected to the computer 10, and may also receive power. Thus, the example of the present invention has been described with an example of a USB transmission method in which power is supplied and data can be transmitted and received freely, and as described above, the present invention is not limited thereto, and any configuration capable of transmitting and receiving data while receiving power is not limited thereto. Of course, it can be realized regardless of the configuration.

Therefore, looking at the configuration of the USB transmission method according to an embodiment of the present invention, a USB module connected to the device USB port 221 connected to the USB port of the computer 10 to control the USB communication with the computer 10 (22) is provided, the transmission device control unit 21 may be provided to control the signal communication of the USB module (22).

Thus, when the transmission device control unit 21 of the wireless power transmission device 20 is connected to the USB port of the computer 10 to supply power from the computer 10, transmission and reception through the primary side antenna 231 is performed. In order to search for this possible peripheral device, a control signal for calling a unique ID of the peripheral device is generated.

The wireless power transmitter 20 further includes a unique ID reading unit 26 for determining a peripheral device unique ID data value transmitted from the peripheral device 30 and 30 'for a peripheral device unique ID call. The unique ID reading unit 26 is discriminated by the control of the transmission device control unit 21.

In addition, the wireless power transmission apparatus 20 may be provided with a status display LED (27) indicating the transmission and reception status of the data, the status display LED (27) displays the USB data transmission and reception status with the computer 10 And USB-LED 271 and device LEDs 272 and 272 'indicating data transmission / reception status with the peripheral devices 30 and 30'.

Therefore, it is easy to know whether the wireless power transmitter 20 is communicating with the computer 10 or with a peripheral device. Furthermore, when data communication is performed with a plurality of peripheral devices, a plurality of device LEDs may be provided to know what the corresponding peripheral device is.

Looking at the operation of the wireless power transmission system (A) according to the present invention provided as described above are as follows. That is, the operation of the wireless power transmission system A is prepared by a power supply step (S01) in which power is supplied to the wireless power transmission apparatus 20 connected to the computer 10 and the USB port as shown in FIGS. Will be.

Thereafter, the wireless power transmitter 20 searches for a peripheral device to prepare for power transmission and data transmission and reception. First, a peripheral device unique ID is called to search for a peripheral device under the control of the transmission device controller 21. The peripheral device search step (S02) for transmitting the request signal through the primary antenna (231) is performed.

In the peripheral device search step, the components are operated by components such as the resonance converter 23 and the gate driver 24 of the wireless power transmitter 20, and transmit signals for searching for peripheral devices. This transmission is caused by the induction magnetic field generated by the primary antenna 231 connected to the resonant converter 23, where the resonant converter 23 is an LC resonance using a half wave or full wave series / parallel resonant converter. Since it generates an induction magnetic field, it has the advantage of power transmission and data signal transmission at low power. The signal for searching for a peripheral device carries a request (FSK) signal for a unique ID, and transmits a call signal for transmitting an acknowledgment response signal from the peripheral device. Therefore, if the unique ID data value is not transmitted from the peripheral device, the request (FSK) signal for the peripheral device search is continuously transmitted at a predetermined period. In addition, even when one peripheral device is searched and operated, the signal for request (FSK) is continuously transmitted in order to detect whether another peripheral device is connected. Therefore, even if a peripheral device is searched and operated, when a new peripheral device is newly searched, the preparation process is performed.

Since a data signal requesting a call of a unique ID is sent to the induced magnetic field, the peripheral device detects this and transmits a unique ID data value suitable for the corresponding device by load modulation. That is, the unique ID data signal transmitting step of transmitting the unique ID data values of the peripheral devices 30 and 30 'by the unique ID call signal transmitted from the wireless power transmitter 20 in the peripheral devices 30 and 30' ( S03). These unique ID data values are stored in the device memory units 351 and 351 'of the peripheral devices 30 and 30'. As shown in FIGS. 1 and 2, the peripheral devices 30 and 30 'are connected to the keyboard. In the case of a mouse, each device memory unit stores the unique ID data value for the keyboard and the unique ID data value for the mouse. Therefore, the unique ID data value transmitted to the wireless power transmitter 20 also corresponds to the corresponding keyboard. And unique ID data values for the mouse are transmitted.

As described above, the wireless power transmitter 20 determines the state and type of the peripheral device by analyzing the unique ID data value transmitted from the peripheral device by the unique ID data signal transmitting step (S04). Proceed. Therefore, it is determined whether the peripheral device 30 or 30 'is a mouse, a keyboard, or other input device or output device, and when the power signal and data signal are transmitted later, the unique ID of the peripheral device is determined. The signal is loaded with the correct signal, so that only the peripheral device can transmit the signal by a predetermined code.

The wireless power transmission step (S05) of generating an induction magnetic field through the primary antenna 231 under the control of the transmission device control unit 21 and transmitting driving power to the peripheral devices 30 and 30 '. Proceed. Thus, the peripheral devices 30 and 30 'perform a preliminary setting operation for operating the peripheral devices 30 and 30' with the power supplied from the wireless power transmitter 20.

In addition, the analysis data for the unique ID data value transmitted from each peripheral device 30, 30 'is transmitted to the computer to prepare for the operation of the peripheral device (30, 30'). That is, the peripheral device information transmission step (S06) of transmitting data on the state and type of the peripheral devices 30 and 30 'to the computer 10 by the USB transmission method is performed.

Therefore, the computer searches for and classifies the type of peripheral device, and installs a driver for operation of the peripheral device as in the normal preparation process of the peripheral device. If the driver is not installed, the installation work is performed automatically. Whether a driver exists in the peripheral device is transmitted to the peripheral device through the wireless power transmitter 20. Accordingly, when there is no driver for the peripheral device, a message window for requesting a driver for the operation of the peripheral device is opened to prepare for the operation of the peripheral device.

In this way, power for operation is supplied to the peripheral devices 30 and 30 ', and a drive driver for operating the peripheral device is installed in the computer, and thus the peripheral device is ready for operation, and is transmitted for data processing with the peripheral device. Will be That is, when the peripheral device is provided as an output device, the data signal for the output is transmitted to the peripheral device through the wireless power transmitter 20. Similarly, when a peripheral device is provided as an input device, data is received from the peripheral device and transmitted to the computer.

That is, the peripheral device operation waiting step (S07) for waiting for transmission of a data signal for receiving or waiting for a data signal inputted through the peripheral device 30 through a computer command by the user is performed. .

By operating the peripheral device as an input device or an output device using an induction magnetic field by the wireless power transmission system (A) according to the present invention provided as described above, since it transmits and receives data without contact and supplies power There is an advantage that it is convenient to use.

As described above, although described with reference to a preferred embodiment of the present invention, those skilled in the art without departing from the spirit and scope of the invention described in the claims below In the present invention can be carried out by various modifications or variations.

1 is a schematic illustration of the wireless power transmission system of the present invention.

2 is a block diagram of a wireless power transmission system of the present invention.

3 is a control flowchart for the wireless power transmission system of the present invention.

Figure 4 is a schematic illustration of a peripheral device according to the prior art.

<Explanation of symbols for the main parts of the drawings>

A: Wireless power transmission system 10: Computer

20: wireless power transmission device 21: transmission device control unit

22: USB module 23: resonant converter

30: peripheral device 31: peripheral device control unit

Claims (6)

A wireless power transmitter 20 is provided to receive power from the computer 10 and to transmit and receive a signal including a power signal or a data signal. Peripheral device 30 of the wireless communication for receiving power and transmitting and receiving data in the wireless power transmission apparatus 20 and the wireless power transmission of the contactless is provided, The wireless power transmission device 20 is provided with a transmission device control unit 21 for controlling the signal communication with the computer 10 and controls the operation of the wireless power transmission device 20, Resonant converter 23 for converting the output signal of the power signal and data signal to the peripheral device 30 by the control of the transmission device control unit 21 is transmitted to the primary antenna 231, characterized in that it is provided Wireless power transmission system comprising a wireless power transmission device for a wireless peripheral device. The method of claim 1, The wireless power transmission device 20 receives an output signal consisting of a power signal and a data signal under the control of the transmission device control unit 21 and transmits the output signal to the resonance converter 23 and includes a gate driver having a bootstrap gate drive. 24, and The signal detector 25 is connected to the resonance converter 23 and connected to the primary side antenna 231 to detect a data signal transmitted from the peripheral device 30 and transmit the detected signal to the transmission device controller 21. Wireless power transmission system having a wireless power transmission device for a wireless peripheral device characterized in that it is provided. The method of claim 1, The peripheral device 30, A secondary side for converting an output signal, which is an induction magnetic field generated by the primary side antenna 231 of the wireless power transmitter 20, from the induced electromotive force generated by the secondary side antenna 321 into power and data signals. Rectifier circuit part 32, Connected to the secondary measurement circuit unit 32 to supply charging power to the battery cell 33, and processes the data transmitted and received by the primary antenna 231 and the secondary antenna 321, the peripheral device ( 30, a peripheral device control unit 31 for controlling to send an input signal, a data signal for the unique ID data value of the peripheral device (30), The peripheral controller 31 includes a charge controller 34 and a signal processing controller 35, and the charge controller 34 supplies the power supplied from the secondary measurement circuitry unit 32 to the battery cell 33. It is provided to be charged, the signal processing control unit 35 converts the signal for the unique ID data value stored in the device memory unit 351 and the data signal input by the user to transmit to the wireless power transmission device 20 Wireless power transmission system having a wireless power transmission device for a wireless peripheral device, characterized in that provided to. The method of claim 1, The wireless power transmission device 20 is provided with a USB module 22 connected to the device USB port 221 connected to the USB port of the computer 10 to control the USB communication with the computer 10, The transmission device control unit 21 is provided to control the signal communication of the USB module 22, The wireless power transmitter 20 may transmit / receive through the primary antenna 231 when the transmitter 21 is connected to the USB port of the computer 10 and power is supplied from the computer 10. In order to detect the peripheral device, a control signal for calling the unique ID of the peripheral device is generated. The wireless power transmitter 20 further includes a unique ID reading unit 26 that determines a peripheral device unique ID data value transmitted from the peripheral device 30 under the control of the transmission device controller 21. Wireless power transmission system having a wireless power transmission device for a wireless peripheral device. The method of claim 1, The wireless power transmission device 20 is provided with a status display LED (27) indicating the transmission and reception status of the data, The status display LED 27 includes a USB-LED 271 indicating a USB data transmission / reception state with the computer 10 and a device LED 272 indicating a data transmission / reception state with the peripheral device 30. Wireless power transmission system comprising a wireless power transmission device for a wireless peripheral device. A power supply step of supplying power to the wireless power transmitter 20 connected to the computer 10 and the USB port (S01); Peripheral search step (S02) for transmitting the call request signal of the peripheral unique ID to the peripheral device for the search of the peripheral device under the control of the transmission device control unit 21 (S02); A unique ID data signal transmitting step (S03) of transmitting a unique ID data value of the peripheral device 30 by a unique ID call signal transmitted from the wireless power transmitter 20 in the peripheral device 30; Peripheral device discrimination step (S04) to determine the state, type for the peripheral device by analyzing the unique ID data value transmitted from the peripheral device 30 in the wireless power transmission device (20); A wireless power transmission step (S05) of transmitting driving power to the peripheral device 30 through the primary antenna 231 under the control of the transmission device control unit 21; Peripheral device information transmission step (S06) for transmitting data on the state and type for the peripheral device 30 to the computer 10 by a USB transmission method; Wireless power transmission provided with a wireless power transmission device for a wireless peripheral device, characterized in that it comprises a peripheral device operation waiting step (S07) to receive the data signal inputted through the peripheral device 30 by the user. Control method of the system.

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