KR20140124925A - Method, terminal and hi-pass system using wireless power transfer - Google Patents

Abstract

Provided are a Hi-pass terminal and system using wireless power transmission, and a method using the same. The Hi-pass terminal in accordance with an embodiment includes a power unit transmitting electricity generated according to a predetermined condition to a communication control unit and the communication control unit communicating with tollgate installation equipment using the electricity to execute a charging process.

Description

TECHNICAL FIELD [0001] The present invention relates to a high-pass system, a terminal, and a method using a wireless power transmission,

A high-pass system, terminal and method for generating power wirelessly only when necessary.

Unnecessary energy may be wasted from the process of stopping and re-starting the vehicle at the tollgate, which may lead to congestion of the road. A high-pass system has been developed to solve problems inevitably caused by such payment methods.

The High Pass system is a system that allows you to pay a fee using a post-paid credit card or a prepaid card located in the vehicle, without having to stop to pay the fare when you cross the highway or toll road.

These high-pass systems are optional, but can be easily adapted by the consumer at most of the recent vehicles. In addition, it is possible to use a high-pass system simply by adding a terminal even in a previously released vehicle, and there are already many users in Korea and users are gradually increasing.

According to an embodiment, there is provided a high-pass terminal including a power terminal for transmitting electric power generated according to a predetermined condition to a communication controller, and a communication controller for communicating with a toll booth installation equipment using electric power to perform a charging operation .

According to another embodiment, the predetermined condition may be a high-pass terminal including at least one of the case where the vehicle passes the tollgate when the vehicle arrives at the tollgate, and the like.

According to another embodiment of the present invention, a high-pass terminal including a power receiver for receiving power generated by a tollgate installation equipment according to predetermined conditions by wireless power transmission may be provided.

According to another embodiment, the power stage may be provided with a high pass terminal including a power storage unit for pre-charging the power delivered to the communication control unit.

According to another embodiment, a high-pass terminal may further be provided, which further includes a power harvesting section for producing power for charging the power storage section.

According to another embodiment, a high-pass terminal may be provided, which further includes an additional function unit for providing high-pass-related information to the driver of the vehicle.

According to an embodiment, there is provided a vehicular navigation system comprising: a vehicle sensing device for generating vehicle arrival information according to predetermined conditions; a power transmitting device for transmitting electric power to a high pass terminal installed in a vehicle based on vehicle arrival information; A high pass system including a high pass terminal for performing a charging process can be provided.

According to another embodiment, the predetermined condition may be a high-pass system including at least one of the case where the vehicle sensing device senses the arrival of the vehicle and the case where the vehicle senses the passage of the vehicle.

According to another embodiment, the power transmitting apparatus may be provided with a high-pass system that wirelessly transmits power to the high-pass terminal.

According to another embodiment, the vehicle sensing apparatus may be provided with a high-pass system including at least one of a vehicle classifying apparatus, a photographing apparatus, and a weight sensor.

According to another embodiment, the vehicle arrival information may be provided with a high pass system including at least one of a speed, a position, a size, an arrival time and a passage expected time of the vehicle.

According to one embodiment, a high-pass system powering method may be provided that includes receiving power generated according to predetermined conditions and communicating with the toll booth installation equipment using power to perform the charging process .

According to another embodiment, the step of receiving power generated according to predetermined conditions comprises receiving power generated when the tollgate installation equipment senses arrival of a vehicle or passage of a vehicle, Can be provided.

According to another embodiment, the step of receiving power generated according to predetermined conditions may be provided with a method of supplying a high-pass system power including wirelessly receiving power from the tollgate installation equipment.

According to one embodiment, the method includes generating vehicle arrival information according to predetermined conditions, transmitting power to the high-pass terminal based on the vehicle arrival information, and transmitting the high- And a step of communicating with the high-pass system power supply method.

According to another embodiment, the step of generating vehicle arrival information according to predetermined conditions includes generating vehicle arrival information when detecting the arrival of the vehicle or when detecting the passage of the vehicle. Can be provided.

According to another embodiment, the step of transmitting power to the high-pass terminal based on the vehicle arrival information may include a step of wirelessly transmitting power to the high-pass terminal.

According to one embodiment, a computer readable storage medium storing one or more programs including instructions for causing a high pass system power supply method to be performed may be provided.

1 is a diagram showing a structure of a general high-pass system.
2 is a block diagram showing a schematic configuration of a general terminal.
3 is a flowchart illustrating an operation of the high-pass system according to an exemplary embodiment of the present invention.
FIG. 4 is a block diagram illustrating the configuration of a tollgate installation device in a high-pass system according to an embodiment.
5 is a block diagram illustrating the configuration of a high-pass terminal according to an embodiment.
6 illustrates a wireless power transmission system in accordance with one embodiment.
Figure 7 shows the distribution of the magnetic field in the resonator and feeder according to one embodiment.
8 shows a configuration of a resonator and a feeder according to an embodiment.
Figure 9 shows the distribution of the magnetic field inside the resonator according to the feeder feed according to one embodiment.

1 is a diagram showing a structure of a general high-pass system. A typical high-pass system receives the power required by the system from the battery of the vehicle 190, while the high-pass system according to one embodiment can receive the power required by the system from outside the vehicle 190.

The vehicle classifying apparatus 110 for classifying the vehicle 190 can be initially placed because there is a difference in the charge imposed depending on the type of the vehicle 190. [ There is a video photographing apparatus 120 for imposing a charge at a vehicle 190 that does not pay an accident situation or a fee, and there may be a guide electric signboard 130 for guiding various situations. An antenna 140 facility for charging a user through a communication with a high-board terminal (OBU) inside the vehicle 190 as the actual vehicle 190 passes by, an operator indicator 150 informing the driver of the fare information, And an integrated lane controller 160 for controlling the vehicle 190 passing through the lane.

According to one embodiment, a typical high-pass system may operate as follows. The vehicle classifying apparatus 110 can confirm the type of the vehicle 190 and the image photographing apparatus 120 can photograph the image of the vehicle 190. [ Thereafter, the following charging process can be performed.

In the charging process, first, the terminal installed in the vehicle 190 can transmit information using infrared rays or frequency (RF). The antenna 140 installed at the tollgate can receive the information and charge a fee corresponding to the vehicle 190. If the fare is normally charged, the breaker 170 is opened and the vehicle 190 can pass.

Here, the general high-pass system can transmit information to the antenna 140 installed at the tollgate in a terminal provided in the vehicle 190 by wireless communication using infrared rays or frequencies. Accordingly, when the vehicle 190 can not generate information, an abnormal operation issue may occur in which the high-pass system can not operate normally.

For example, there may be a case where the card is not inserted into the high-pass terminal, or the power of the terminal is not supplied. If the card is not inserted, the high pass system may not operate properly even if the communication is performed because there is no object to which the charge is to be charged. However, when power is not supplied to the terminal, the high pass system may not operate because information can not be transmitted from the terminal of the vehicle 190 to the antenna 140 even if the card is normally inserted.

Here, when the power of the terminal is not supplied, a problem may occur due to a system in the vehicle 190. However, the power may be removed due to a user's mistake. For example, if the power button of the terminal is turned off and the power is turned off regardless of the intention of the user, when the user passes the toll gate through the toll gate 170, the user suddenly becomes uncomfortable.

Also, the terminal may continuously consume the internal power of the vehicle 190 even in a situation where operation is not required. This may be because there is no information about the time when the vehicle 190 passes through the tollgate or the like. Thus, unnecessary power consumption can be continuously generated. When the user arbitrarily restricts the power of the terminal to solve the power consumption problem, the user may be required to perform an additional operation to adjust the connection state of the power supply. In addition, if the user does not connect the power source in a state where the operation of the terminal is required in error, the above-mentioned abnormal operation issue may occur.

According to an embodiment of the present invention, instead of receiving the power of the terminal for signal transmission from the battery of the vehicle 190 or the power generated by the generator, The power can be supplied only when the operation of the power source is required.

Specifically, when the vehicle 190 passes through the tollgate, the vehicle classifying device 110 can be operated to charge an appropriate fee for each vehicle 190. Here, the vehicle classifying apparatus 110 may include at least one of an infrared ray apparatus, a pressure sensor, a ratio sensing apparatus, and a photographing apparatus 120. For example, the image capturing apparatus 120 can confirm that the vehicle 190 passes the tollgate. After confirming the arrival of the tollgate of the vehicle 190 by using the vehicle arrival information which confirms that the vehicle 190 arrives at the tollgate, the electric power transmitting unit located at the tollgate can supply electric power to the vehicle high pass terminal.

The high pass terminal located inside the vehicle 190 can perform the same function as that using the internal power of the existing vehicle 190 by using the power supplied from the outside. The power consumption required by the high-pass terminal is supplied only during the actual operation, so that the power consumption problem in the general terminal may not be displayed. In addition, since the user does not have to control the power of the high-pass terminal in order to prevent power wastage, the convenience of the user can be increased. Also, since the high-pass terminal is not required to supply power to the high-pass terminal, the high-pass terminal can be freely installed anywhere in the vehicle 190, so that the degree of freedom in designing the vehicle 190 can be increased.

2 is a block diagram showing a schematic configuration of a general terminal 200. As shown in FIG. The general terminal 200 may include a power supply circuit 210 and a communication module 220.

The power supply circuit 210 included in the general terminal 200 shown in FIG. 2 may receive power from a power source present in the vehicle or use a battery inside the terminal 200 as a power source.

In a typical high-pass system, since there is no information on when the vehicle arrives at the tollgate, power may be continuously supplied to the communication module 220 for performing the charging process. Therefore, the general terminal 200 can waste power even in a situation where power consumption is not required. The user may artificially control the power of the terminal 200 in order to reduce the power consumption. However, in this case, inconvenience may arise that the user must control the power of the terminal 200 every time the terminal 200 is used. If the user fails to perform proper power control, the terminal 200 may not operate and may interfere with the traffic of the vehicle by the breaker of the toll gate.

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

The high-pass system according to an embodiment transfers power to the high-pass terminal (OBU), and the high-pass system can be operated from the transmitted power. Here, the card can be used when an actual charge is imposed, and the information stored in the chip built in the high pass terminal can be used.

3 is a flowchart illustrating an operation of the high-pass system according to an exemplary embodiment of the present invention. The high-pass terminal according to an embodiment can operate by receiving power from a power transmitting apparatus located at a tollgate. The operation of this high-pass system may be as shown in FIG.

At step 310, the vehicle may arrive at the tollgate. Here, the vehicle detection device included in the tollgate installation equipment can detect arrival of the vehicle. According to another embodiment, the vehicle sensing device can sense passage of the vehicle.

In step 320, vehicle arrival information may be generated through the processor of the vehicle sensing apparatus according to predetermined conditions. Such as when the vehicle arrives at a tollgate, when the vehicle sensing device senses the arrival of the vehicle or when it detects the passage of the vehicle.

According to one embodiment, a vehicle sensing device, as in a normal high pass system, may include a vehicle classifying device, a photographing device, and other sensing devices. Here, the vehicle classifying device or the image photographing device can generate the vehicle arrival information. Here, the vehicle arrival information is based on the vehicle detection signal, and may include information that the vehicle arrives or passes. For example, the vehicle arrival information may include a speed, a position, a size, an arrival time and a passage expected time of the vehicle, and the like.

Subsequently, in step 330, the power transmission device can generate power based on the vehicle arrival information. For example, the power transmitting apparatus can transmit the power generated based on the vehicle arrival information to the high pass terminal. Here, the power transmitting apparatus may use a general antenna or another power transmitting apparatus.

In step 340, the high-pass terminal can receive the power generated through the power receiving unit. For example, power generated according to predetermined conditions can be received via wireless power transmission.

Then, in step 350, the high-pass terminal can be operated using the received power. Here, the high-pass terminal can operate the communication control unit to perform the charging process with the received power.

In step 360, the communication control unit may communicate with the tollgate installation equipment using the received electric power to perform the charging process. The tollgate installation equipment can communicate with the high-pass terminal driven by the transmitted power to perform the charging process. Here, the charging process may be similar to the process described in FIG. 1 as a payment method performed in a general high-pass system.

Then, in step 370, the vehicle equipped with the high pass terminal for which the charging is completed can pass through the tollgate. Here, the toll booth installation equipment can raise the breaker so that the vehicle can pass through when the charging process is completed.

FIG. 4 is a block diagram illustrating the configuration of a tollgate installation equipment in the high-pass system 400 according to one embodiment. The tollgate installation equipment may include a vehicle sensing device 420 and a power transmitting device 410. According to one embodiment, the high-pass system 400 includes the tollgate installation equipment and the high-pass terminal 430, and the high-pass terminal 430 can be mounted to the vehicle 431. The configuration of the high-pass terminal 430 will be described later in detail with reference to FIG.

The power transmitting apparatus 410 may be configured as shown in FIG. For example, the power transmitter 410 may include a power source 411, a Switching-Mode Power Supply (SMPS) 413, and a controller 412. The SMPS 413 may include a transmission resonator 414, a power amplifier 415, a frequency oscillator 416, and a DC / DC converter 417. The power source 411 may supply power to the power transmitting device 410. [ The control unit 412 can control the power transmission of the power transmitting apparatus 410. [

The power transmitting apparatus 410 according to the embodiment can transmit power to the high pass terminal installed in the vehicle based on the vehicle arrival information. Here, the power transmission apparatus 410 is similar to that of a transmission unit of a general wireless power transmission apparatus, and the SMPS 413 using the transmission resonator 414 will be described in detail with reference to FIG. 6 to FIG.

The vehicle sensing apparatus 420 can generate vehicle arrival information according to predetermined conditions. The vehicle sensing device 420 may include a vehicle classifying device, a vehicle sensor, a photographing device, a weight sensor, an optical sensor, and other sensing devices. For example, the vehicle arrival information may include a speed, a position, a size, a time of arrival, a passing time, and a passage time of the vehicle.

According to one embodiment, the tollgate installation equipment may comprise a computer-readable storage medium having stored thereon one or more programs for carrying out the high pass system powering method according to FIG.

FIG. 5 is a block diagram illustrating the configuration of a high-pass terminal 500 according to an embodiment. The high pass terminal 500 may include a power receiving unit 510, a power stage 520, a communication control unit 530, and an additional function unit 540.

The high-pass terminal 500 according to the embodiment may be configured as shown in FIG. 5 to receive and use the power generated in the power transmission apparatus. Here, the high-pass terminal 500 can perform the charging process using the power received from the power transmitting apparatus.

The power receiving unit 510 can receive the power generated by the tollgate installation equipment according to predetermined conditions by wireless power transmission. The predetermined condition here may include a case where the vehicle passes through the tollgate when the vehicle arrives at the tollgate. For example, the power receiving unit 510 may include a receiving resonator 511 and a rectifier 512. The power receiving unit 510 according to the embodiment receives power through the reception resonator 511, and the specific wireless power transmission process through the resonance will be described in detail with reference to FIG. 6 to FIG.

The power stage 520 can transmit the power generated according to a predetermined condition to the communication controller 530. Specifically, the received power can be controlled to an appropriate voltage required by the high pass terminal 500. Such as a DC / DC converter. According to one embodiment, the power terminal 520 may transmit the power received by the power receiving unit 510 to the communication controller 530. Specifically, for example, when a vehicle equipped with the high-pass terminal 500 arrives at a tollgate, the power terminal 520 directly transmits power received from the tollgate installation equipment via the power receiving unit 510 to the communication control unit 530). Therefore, the high-pass terminal 500 can perform the charging process even if the battery or the like is not built in.

According to another embodiment, the power stage 520 may include a power storage unit that pre-charges the power delivered to the communication control unit 530. [ Here, the power storage unit may include a battery. For example, the power storage unit can charge the power before arriving at the toll gate and performing the charging process.

According to another embodiment, the high-pass terminal 500 may include an energy harvesting unit that generates power to charge the power storage unit. The power harvesting unit may include a solar cell, a wind power generator, and other power sources.

For example, the high-pass terminal 500 can charge the energy storage unit through the power harvesting unit at normal times and operate the communication control unit 530 using the charged energy when it arrives at the tollgate. In another example, the high-pass terminal 500 can charge the energy storage unit through the internal power of the vehicle at normal times, and operate the communication control unit 530 using the charged energy when it arrives at the tollgate. In another example, the high-pass terminal 500 does not operate normally and can operate the communication control unit 530 using the internal power of the vehicle when it arrives at a tollgate.

The communication control unit 530 can communicate with the tollgate installation equipment using the power delivered to the power stage 520 to perform the charging process. Specifically, the billing process can be performed using the billing information including the information of the high-pass terminal 500 and the credit card information through communication with the tollgate installation machine.

The additional function unit 540 can provide high pass related information to the driver of the vehicle. Specifically, the apparatus may include a display output unit, an audio output unit, and the like as an apparatus for functioning the high-pass terminal 500. Here, the display output unit may include an LCD. According to one embodiment, the power storage of power stage 520 may be required to operate additional function 540. [ For example, if an LCD liquid crystal is used to continuously provide information to a user, an internal battery may be required. If this additional function is not provided, a battery may be unnecessary. Here, the high-pass-related information may include a toll fee cost, a payment balance, a settlement cost, high-pass terminal model information, and settlement-related information.

According to one embodiment, the high-pass terminal 500 may include a computer-readable storage medium storing one or more programs including instructions for causing the high-pass system powering method according to FIG. 3 described above to be performed.

When power is received at the high-pass terminal according to an exemplary embodiment, a charging process is performed between the high-pass terminal and the tollgate using the power, so that the general high-pass terminal can be operated. Since the power supply is stopped after the vehicle passes the tollgate, the high pass terminal does not operate after that, and the power consumption can be no longer consumed. At this time, when the high-pass terminal incorporates a battery, it is possible to consume the electric power charged in the battery.

The high-pass system according to one embodiment can be used only when the power required for charging is reached at a tollgate, unlike a general high-pass system. Even if the high-pass terminal continues to consume power for additional functions, such as a battery-powered system, the power required to charge can be transferred from the tollgate to the high-pass terminal to the wireless power transmission. Accordingly, when the high-pass terminal is powered off, such as when the battery is discharged or the power line is removed, if the vehicle arrives at the tollgate, the power transmission device included in the tollgate installation equipment can transmit power Can be supplied.

A typical high-pass system provides various convenience in paying a road traffic fee to a driver of a vehicle, but the power of the terminal can be supplied only from a power source inside the vehicle. The high-pass system according to one embodiment can supply the power of the high-pass terminal using wireless power transmission from outside the vehicle. Since the power is supplied to the high-pass terminal only when the vehicle passes through the toll gate and only the operation of the high-pass terminal is actually required, the power dissipation of the normal high-pass system can be solved.

The high-pass system according to an exemplary embodiment of the present invention may also be applied to a high-pass system in which a high-pass system is operated from outside the vehicle to a circuit breaker operation that may occur due to power failure during various situations, It can be solved.

In the case of a general wired power supply method, the position of the terminal is limited. However, the high-pass terminal according to an embodiment can be freely positioned by using the wireless power transmission method. This makes it possible to design the vehicle more freely.

In the case of a terminal equipped with an internal battery, although the position is flexible, it is necessary to replace the battery, and power can be continuously consumed even when the operation is not necessary. In contrast, the high-pass system according to the embodiment does not require replacement of the battery and can eliminate power waste.

6 illustrates a wireless power transmission system in accordance with one embodiment. A method of performing communication between a source and a target may include an in-band communication method and an out-band communication method. The in-band communication method is a method in which a source and a target communicate with each other at the same frequency as that used for transmission of power. In the out-band communication method, a source and a target communicate using a frequency different from a frequency used for power transmission Method.

6, a wireless power transmission system according to an embodiment may include a source 610 and a target 620. The source 610 refers to a device that supplies wireless power, and the device may include all electronic devices capable of supplying power such as a pad, a terminal, and a TV. The target 620 refers to a device that receives wireless power, and the device may include all electronic devices that require power such as a terminal, a TV, a car, a washing machine, a radio, and a lamp.

The source 610 includes a variable SMPS 611, a power amplifier 612, a matching network 613, a Tx control logic 614, (615).

Variable Switching Mode Power Supply (SMPS) 611 can generate a DC voltage by switching an AC voltage of several tens Hz range output from a power supply. The variable SMPS 611 may output a constant level DC voltage or adjust the output level of the DC voltage according to the control of the Tx control logic 614. [

The power detector 616 may detect the output current and voltage of the variable SMPS 611 and may transmit information about the detected current and voltage to the Tx controller 614. [ The power detector 616 may also detect the input current and voltage of the power amplifier 612.

The power amplifier 612 can generate power by converting a DC voltage of a certain level into an AC voltage by a switching pulse signal of several MHz to several tens MHz. For example, the power amplifier 612 converts the DC voltage supplied to the power amplifier 612 to an AC voltage by using the reference resonance frequency F _Ref , so that the power for communication or the power for charging used in the plurality of target devices Can be generated.

Here, the communication power means a small power of 0.1 to 1 mWatt, and the charging power may mean a large power of 1 mWatt to 200 Watt consumed in the device load of the target device. As used herein, the term "charging" may be used to mean powering a unit or element charging power. The term "charging" may also be used to mean powering a unit or element that consumes power. Here, a unit or an element includes, for example, a battery, a display, a sound output circuit, a main processor, and various sensors.

In the present specification, the "reference resonance frequency" may be a resonance frequency that the source 610 uses basically. Further, the "tracking frequency" may be a resonance frequency adjusted according to a predetermined method.

The Tx control logic 614 detects the reflected wave for the "power for communication" or the "power for charging" and outputs a target resonator 633 and a source resonator based on the detected reflected wave. It is possible to detect mismatching. The Tx control unit 614 can detect mismatching by detecting the envelope of the reflected wave or by detecting the amount of power of the reflected wave.

The matching network 613 can compensate for the impedance mismatch between the source resonator 631 and the target resonator 633 under optimal control by controlling the Tx control unit 614. The matching network 613 may be connected via a switch under the control of the Tx control unit 614 with a combination of capacitors or inductors.

The Tx control unit 614 calculates a voltage standing wave ratio (VSWR) based on the level of the output voltage of the source resonator 631 or the power amplifier 612 and the voltage level of the reflected wave, If the voltage standing wave ratio is smaller than a predetermined value, it can be determined that the mismatching has been detected.

If the voltage standing wave ratio is smaller than the predetermined value, the Tx control unit 614 calculates the power transmission efficiency for each of the N tracking frequencies and determines the tracking frequency F _best And adjusts the F _Ref to the F _Best .

Also, the Tx control unit 614 can adjust the frequency of the switching pulse signal. The frequency of the switching pulse signal can be determined under the control of the Tx control unit 614. [ Tx control unit 614 may generate a modulation signal for transmission to target 620 by controlling a power amplifier 612. [ For example, the communication unit 615 may transmit various data 640 to the target 620 via in-band communication. Further, the Tx control unit 614 can detect the reflected wave and demodulate the signal received from the target 620 through the envelope of the reflected wave.

The Tx control unit 614 may generate a modulated signal for performing in-band communication through various methods. The Tx control unit 614 can generate a modulation signal by turning on / off the switching pulse signal. Further, the Tx control unit 614 can perform delta-sigma modulation to generate a modulated signal. The Tx control unit 614 can generate a pulse width modulation signal having a constant envelope.

Meanwhile, the communication unit 615 may perform out-band communication using a communication channel. The communication unit 615 may include a communication module such as Zigbee or Bluetooth. The communication unit 615 may transmit the data 640 to the target 620 through out-band communication.

The source resonator 631 transfers the electromagnetic energy 630 to the target resonator 633. For example, the source resonator 631 may transmit "communication power" or "charging power" to the target 620 through magnetic coupling with the target resonator 633.

The target 620 includes a matching network 621, a rectifier 622, a DC / DC converter 623, a communication unit 624 and an Rx control logic (625).

A target resonator 633 receives an electromagnetic energy 630 from a source resonator 631. For example, the target resonator 633 may receive "communication power" or "charging power" from the source 610 through magnetic coupling with the source resonator 631. In addition, the target resonator 633 may receive various data 640 from the source 610 via in-band communication.

The matching network 621 can match the input impedance seen toward the source 610 side and the output impedance seen toward the load side. The matching network 621 may be composed of a combination of a capacitor and an inductor.

The rectifier 622 rectifies the alternating voltage to generate a DC voltage. For example, the rectifier 622 can rectify the received AC voltage to the target resonator 633.

The DC / DC converter 623 can adjust the level of the DC voltage output from the rectifier 622 to the capacity required for the load. For example, the DC / DC converter 623 can adjust the level of the DC voltage output from the rectifier 622 to 3 to 10 Volts.

A power detector 627 may detect the voltage of the input terminal 626 of the DC / DC converter 623 and the current and voltage of the output terminal. The voltage of the detected input 626 may be used to calculate the transmission efficiency of the power delivered at the source. The detected current and voltage at the output terminal can be used to calculate the power to which the control unit (Rx Control Logic) 625 transfers the load. The Tx control unit 614 of the source 610 can determine the power to be transmitted from the source 610 in consideration of the power required for the load and the power transmitted to the load.

When the power of the output terminal calculated through the communication unit 624 is transmitted to the source 610, the source 610 can calculate the power to be transmitted.

The communication unit 624 can perform in-band communication in which data is transmitted and received using the resonance frequency. At this time, the Rx control logic 625 detects a signal between the target resonator 633 and the rectifier 622 to demodulate the received signal, or detects the output signal of the rectifier 622 and demodulates the received signal . For example, the Rx control logic 625 may demodulate the received message via in-band communication. The Rx control logic 625 can modulate the signal to be transmitted to the source 610 by adjusting the impedance of the target resonator 633 through the matching network 621. [ In a simple example, the Rx control logic 625 may cause the reflected wave to be detected at the Tx control 614 of the source 610 by increasing the impedance of the target resonator 633. Depending on whether or not the reflected wave is generated, the Tx control unit 614 of the source 610 can detect the binary number "0" or "1 ".

The communication unit 624 compares the type of the target product, the manufacturer information of the target, the model name of the target, the battery type of the target, the charging method of the target, Quot ;, "information about the characteristic of the target resonator of the target "," information about the used frequency band of the target ", "amount of power consumed by the target &Quot; unique identifier "and" version or specification information of the product of the target "to the communication unit 615 of the source 610. The type of information included in the response message may vary depending on the implementation.

Meanwhile, the communication unit 624 may perform out-band communication using a communication channel. The communication unit 624 may include a communication module such as Zigbee or Bluetooth. The communication unit 624 can transmit and receive the data 640 and the source 610 through out-band communication.

The communication unit 624 receives a wake-up request message from the source 610 and the power detector 627 detects the amount of power received at the target resonator 633, It may transmit information to the source 610 about the amount of power received at the resonator 633. The information on the amount of power received by the target resonator 633 includes information such as "input voltage value and current value of the rectifier 622", "output voltage value and current value of the rectifier 622" or "DC / DC Output voltage value and current value of the converter 623 ".

In FIG. 6, the Tx control unit 614 can set the resonance bandwidth of the source resonator 631. Depending on the setting of the resonance bandwidth of the source resonator 631, the Q-factor Q _S of the source resonator 631 can be determined.

Also, the Rx control logic 625 can set the resonance bandwidth of the target resonator 633. [ The Q-factor Q _S of the target resonator 633 can be determined in accordance with the setting of the resonance bandwidth of the target resonator 633. At this time, the resonant bandwidth of the source resonator 631 may be set to be wider or narrower than the resonant bandwidth of the target resonator 633.

In a resonant mode wireless power transmission, the resonant bandwidth is an important factor. Qt is a Q-factor that takes into consideration both a change in distance between the source resonator 631 and the target resonator 633, a change in resonant impedance, an impedance mismatching, a reflection signal, etc. Qt is given by Equation 1 And the inverse relationship with the resonance bandwidth as shown in Fig.

In Equation (1), f0 is the center frequency,

Bandwidth,

BW _S is the resonant bandwidth of the source resonator 631, and BW _D is the resonant bandwidth of the target resonator 633. [

On the other hand, in the wireless power transmission, the efficiency U of the wireless power transmission can be defined as shown in Equation (2).

Here, K is a coupling coefficient for energy coupling between the source resonator 631 and the target resonator 633,

The reflection coefficient at the source resonator 631,

The reflection coefficient at the target resonator 633,

M is the mutual inductance between the source resonator 631 and the target resonator 633, R _S is the impedance of the source resonator 631, R _D is the impedance of the target resonator 633, Q _S is the resonance frequency of the source resonator 631) Q-factor, Q _D of the Q-factor, Q _K of the target resonator 633 may be a Q-factor of the energy coupling between the source resonator 631 and the target resonator 633.

Referring to Equation (2) above, the Q-factor is highly related to the efficiency of the wireless power transmission.

Thus, the Q-factor may be set to a high value to increase the efficiency of the wireless power transmission. At this time, when Q _S and Q _D are set to an excessively high value, a change in coupling coefficient K for energy coupling, a change in distance between the source resonator 631 and the target resonator 633, a change in resonance impedance, The efficiency of the wireless power transmission may decrease due to matching or the like.

Also, if the resonance bandwidth of each of the source resonator 631 and the target resonator 633 is set too narrow to increase the efficiency of the wireless power transmission, impedance mismatching and the like can easily occur even with a small external influence. Considering impedance mismatch, Equation (1) can be expressed as Equation (3).

When the resonance bandwidth or the bandwidth of the impedance matching frequency between the source resonator 631 and the target resonator 633 is maintained in an unbalance relationship, A change in the distance, a change in the resonance impedance, impedance mismatch, or the like may result in a reduction in the efficiency of the wireless power transmission.

According to Equations (1) and (3), when the resonance bandwidth or the bandwidth of the impedance matching frequency between the source resonator 631 and the target resonator 633 is maintained in an unbalance relationship, the cue-factor of the source resonator 631 The cue-factors of the target resonator 633 remain unbalanced with each other.

6, the source 610 may wirelessly transmit wake-up power for wake-up of the target 620 and broadcast a configuration signal for configuring the wireless power transmission network. The source 610 receives a search frame from the target 620 that includes a receive sensitivity value of the configuration signal and allows the join of the target 620, To the target 620, an identifier for identifying the power source 620, to generate charge power through power control, and to transmit the charge power wirelessly to the target 620. [

In addition, the target 620 may receive the wakeup power from at least one of the plurality of source devices, activate the communication function using the wake-up power, Select a source 610 based on the receive sensitivity of the configuration signal, and receive power from the selected source 610 wirelessly.

7 to 9, a "resonator" may include a source resonator and a target resonator.

7 shows the distribution of the magnetic field in the resonator and feeder according to one embodiment.

When the resonator is supplied with power through a separate feeder, a magnetic field is generated in the feeder and a magnetic field is generated in the resonator.

Referring to FIG. 7A, a magnetic field 730 is generated as the input current flows in the feeder 710. The direction 731 of the magnetic field inside the feeder 710 and the direction 733 of the magnetic field outside can have opposite phases to each other. An induced current can be generated in the resonator 720 by the magnetic field 730 generated in the feeder 710. [ The direction of the induced current may be opposite to the direction of the input current.

A magnetic field 740 is generated in the resonator 720 by the induced current. The direction of the magnetic field has the same direction inside the resonator 720. The direction 741 of the magnetic field generated inside the feeder 710 by the resonator 720 and the direction 743 of the magnetic field generated outside the feeder 710 have the same phase.

As a result, by combining the magnetic field generated by the feeder 710 and the magnetic field generated by the resonator 720, the intensity of the magnetic field inside the feeder 710 is weakened and the intensity of the magnetic field outside the feeder 710 is strengthened do. Therefore, when power is supplied to the resonator 720 through the feeder 710 having the structure as shown in FIG. 7, the intensity of the magnetic field at the center of the resonator 720 is weak, and the strength of the magnetic field at the periphery is strong. If the distribution of the magnetic field on the resonator 720 is not uniform, it is difficult to perform the impedance matching because the input impedance varies from time to time. In addition, since the wireless power transmission is good in the portion where the magnetic field strength is strong and the wireless power transmission is not performed in the portion where the strength of the magnetic field is weak, the power transmission efficiency is decreased on average.

7 (b) shows the structure of a wireless power transmission apparatus in which the source resonator 750 and the feeder 760 have a common ground. The source resonator 750 may include a capacitor 751. The feeder 760 can receive the RF signal through the port 761. An RF signal is input to the feeder 760 so that an input current can be generated. An input current to the feeder 760 generates a magnetic field and an inductive current can be induced in the source resonator 750 from the magnetic field. Further, a magnetic field is generated from the induced current flowing through the source resonator 750. At this time, the direction of the input current flowing in the feeder 760 and the direction of the induced current flowing in the source resonator 750 have opposite phases. Therefore, in the region between the source resonator 750 and the feeder 760, since the direction 771 of the magnetic field generated by the input current and the direction 773 of the magnetic field generated by the induced current have the same phase, Is strengthened. On the other hand, in the inside of the feeder 760, since the direction 781 of the magnetic field generated by the input current and the direction 783 of the magnetic field generated by the induced current have opposite phases, the strength of the magnetic field is weakened. As a result, the intensity of the magnetic field at the center of the source resonator 750 becomes weak and the intensity of the magnetic field at the periphery of the source resonator 750 can be enhanced.

The feeder 760 can adjust the area inside the feeder 760 to determine the input impedance. The input impedance here refers to the apparent impedance when looking at the source resonator 750 at the feeder 760. The input impedance increases as the area inside the feeder 760 increases, and the input impedance decreases as the internal area decreases. However, even when the input impedance is decreased, the magnetic field distribution inside the source resonator 750 is not constant, so the input impedance value is not constant depending on the position of the target device. Accordingly, a separate matching network is required for matching the output impedance of the power amplifier with the input impedance. If the input impedance increases, a separate matching network may be needed to match the large input impedance to the small output impedance.

Even if the target resonator has the same configuration as the source resonator 750 and the feeder of the target resonator has the same configuration as the feeder 760, a separate matching network may be required. The direction of the current flowing in the target resonator and the direction of the induced current flowing in the feeder of the target resonator have opposite phases to each other.

8 is a view showing a configuration of a resonator and a feeder according to an embodiment.

Referring to FIG. 8A, the resonator 810 may include a capacitor 811. The feeder 820 may be electrically connected to both ends of the capacitor 811.

8 (b) is a diagram showing the structure of FIG. 8 (a) in more detail. At this time, the resonator 810 may include a first transmission line, a first conductor 841, a second conductor 842, and at least one first capacitor 850.

A first capacitor 850 is inserted in series between the first signal conductor portion 831 and the second signal conductor portion 832 in the first transmission line such that the electric field is applied to the first capacitor 850). Generally, the transmission line includes at least one conductor at the top and at least one conductor at the bottom, where current flows through the conductor at the top and the conductor at the bottom is electrically grounded. In the present specification, the conductor on the upper part of the first transmission line is divided into the first signal conductor part 831 and the second signal conductor part 832, and the conductor under the first transmission line is called the first ground conductor part 833).

As shown in Fig. 8 (b), the resonator may have the form of a two-dimensional structure. The first transmission line includes a first signal conductor portion 831 and a second signal conductor portion 832 at an upper portion thereof and a first ground conductor portion 833 at a lower portion thereof. The first signal conductor portion 831 and the second signal conductor portion 832 and the first ground conductor portion 833 are disposed facing each other. The current flows through the first signal conductor portion 831 and the second signal conductor portion 832.

8 (b), one end of the first signal conductor portion 831 is shorted to the first conductor 841 and the other end is connected to the first capacitor 850 . One end of the second signal conductor portion 832 may be grounded to the second conductor 842 and the other end thereof may be connected to the first capacitor 850. As a result, the first signal conductor portion 831, the second signal conductor portion 832 and the first ground conductor portion 833, and the conductors 841 and 842 are connected to each other so that the resonator has an electrically closed loop structure . Here, the 'loop structure' includes a circular structure, a polygonal structure such as a rectangle, and the like, and the term 'having a loop structure' means that it is electrically closed.

The first capacitor 850 is inserted in the middle of the transmission line. More specifically, a first capacitor 850 is inserted between the first signal conductor portion 831 and the second signal conductor portion 832. In this case, the first capacitor 850 may have the form of a lumped element and a distributed element. In particular, a dispersed capacitor in the form of a dispersive element can comprise zigzag shaped conductor lines and a dielectric with a high dielectric constant present between the conductor lines.

As the first capacitor 850 is inserted into the transmission line, the source resonator may have the characteristics of a metamaterial. Here, a meta material is a material having a particular electrical property that can not be found in nature, and may have an artificially designed structure. The electromagnetic properties of all materials present in nature have inherent permittivity or permeability, and most materials have a positive permittivity and a positive permeability.

In most materials, the right-hand rule applies to electric fields, magnetic fields and pointing vectors, so these materials are called RHM (Right Handed Material). However, the meta-material is a material having a permittivity or permeability that does not exist in the natural world, and may be an epsilon negative material, an MNG (mu negative material), a DNG (double negative) material, index material, left-handed material, and the like.

At this time, if the capacitance of the first capacitor 850 inserted as a lumped element is properly determined, the source resonator can have a metamaterial characteristic. In particular, by suitably adjusting the capacitance of the first capacitor 850, the source resonator can have a negative permeability, so that the source resonator can be called an MNG resonator. The criterion for determining the capacitance of the first capacitor 850 may vary. A criterion allowing the source resonator to have the property of a metamaterial, a premise that the source resonator has a negative permeability at the target frequency, or a source resonator having a Zeroth-Order Resonance characteristic And the capacitance of the first capacitor 850 can be determined under the premise of at least one of the above-mentioned premises.

The MNG resonator may have a zeroth-order resonance characteristic with a resonant frequency at a frequency of zero propagation constant. Since the MNG resonator may have a zero resonance characteristic, the resonance frequency may be independent of the physical size of the MNG resonator. For example, as will be described below, it is sufficient to appropriately design the first capacitor 850 in order to change the resonant frequency in the MNG resonator, so that the physical size of the MNG resonator may not be changed.

Also, since the electric field in the near field is concentrated in the first capacitor 850 inserted in the transmission line, the magnetic field in the near field is dominant due to the first capacitor 850. Since the MNG resonator can have a high Q-factor by using the first capacitor 850 of the concentration device, the efficiency of power transmission can be improved. For reference, the queue-factor represents the ratio of the reactance to the degree of resistance or ohmic loss in the wireless power transmission, the larger the queue-factor, the greater the efficiency of the wireless power transmission .

Also, although not shown in FIG. 8 (b), a magnetic core passing through the MNG resonator may be further included. Such a magnetic core can perform a function of increasing a power transmission distance.

Referring to FIG. 8B, the feeder 820 includes a second transmission line, a third conductor 871, a fourth conductor 872, a fifth conductor 881, and a sixth conductor 882 .

The second transmission line may include a third signal conductor portion 861 and a fourth signal conductor portion 862 at the top and a second ground conductor portion 863 at the bottom. The third signal conductor portion 861 and the fourth signal conductor portion 862 and the second ground conductor portion 863 may be disposed facing each other. The current flows through the third signal conductor portion 861 and the fourth signal conductor portion 862.

8 (b), one end of the third signal conductor portion 861 is shorted to the third conductor 871 and the other end is connected to the fifth conductor 881 . One end of the fourth signal conductor portion 862 may be grounded to the fourth conductor 872 and the other end thereof may be connected to the sixth conductor 882. The fifth conductor 881 may be coupled to the first signal conductor portion 831 and the sixth conductor 882 may be coupled to the second signal conductor portion 832. The fifth conductor 881 and the sixth conductor 882 may be connected in parallel at both ends of the first capacitor 850. The fifth conductor 881 and the sixth conductor 882 may be used as an input port for receiving an RF signal.

As a result, the third signal conductor portion 861, the fourth signal conductor portion 862 and the second ground conductor portion 863, the third conductor 871, the fourth conductor 872, the fifth conductor 881, The sixth conductor 882 and the resonator 810 are connected to each other so that the resonator 810 and the feeder 820 can have an electrically closed loop structure. Here, the 'loop structure' includes a circular structure, a polygonal structure such as a rectangle, and the like. When an RF signal is input through the fifth conductor 881 or the sixth conductor 882, the input current flows to the feeder 820 and the resonator 810, and the resonator 810 The induced current is induced. The direction of the input current flowing in the feeder 820 and the direction of the induced current flowing in the resonator 810 are formed to be the same so that the strength of the magnetic field is strengthened at the center of the resonator 810, The strength is weakened.

Since the input impedance can be determined by the area of the region between the resonator 810 and the feeder 820, no separate matching network is needed to perform the matching of the input impedance with the output impedance of the power amplifier. Even if a matching network is used, the structure of the matching network can be simplified because the input impedance can be determined by adjusting the size of the feeder 820. [ A simple matching network structure minimizes the matching loss of the matching network.

The third conductor 871, the fourth conductor 872, the fifth conductor 881 and the sixth conductor 882 may have the same structure as the resonator 810. For example, if the resonator 810 is a loop structure, the feeder 820 may also be a loop structure. Further, when the resonator 810 has a circular structure, the feeder 820 may also have a circular structure.

9 is a diagram showing a distribution of a magnetic field in a resonator according to feeding of a feeder according to an embodiment.

Feeding in a wireless power transmission implies supplying power to the source resonator. Also, in wireless power transmission, feeding can mean supplying AC power to the rectifier. 9 (a) shows the direction of the input current flowing in the feeder and the direction of the induced current induced in the source resonator. 9A shows the direction of the magnetic field generated by the input current of the feeder and the direction of the magnetic field generated by the induced current of the source resonator. FIG. 9A is a more simplified representation of the resonator 910 and the feeder 920 of FIG. 9 (b) shows an equivalent circuit of a feeder and a resonator.

9 (a), the fifth conductor or the sixth conductor of the feeder may be used as the input port 910. [ The input port 910 receives an RF signal. The RF signal can be output from the power amplifier. The power amplifier can increase or decrease the amplitude of the RF signal according to the needs of the target device. The RF signal input at the input port 910 may be displayed in the form of an input current flowing through the feeder. The input current flowing in the feeder flows clockwise along the transmission line of the feeder. However, the fifth conductor of the feeder may be electrically connected to the resonator. More specifically, the fifth conductor may be coupled to the first signal conductor portion of the resonator. Therefore, the input current flows not only in the feeder but also in the resonator. In the resonator, the input current flows counterclockwise. A magnetic field is generated by an input current flowing in the resonator, and an induced current is generated in the resonator by the magnetic field. The induced current flows clockwise in the resonator. At this time, the induced current can transfer energy to the capacitor of the resonator. A magnetic field is generated by the induced current. In Fig. 9A, the input current flowing through the feeder and the resonator is indicated by a solid line, and the induced current flowing through the resonator is indicated by a dotted line.

The direction of the magnetic field generated by the current can be determined by the right-hand rule. In the feeder, the direction 921 of the magnetic field generated by the input current flowing in the feeder is the same as the direction 923 of the magnetic field generated by the induced current flowing in the resonator. Therefore, the strength of the magnetic field inside the feeder is strengthened.

In the region between the feeder and the resonator, the direction 933 of the magnetic field generated by the input current flowing through the feeder and the direction 931 of the magnetic field generated by the induced current flowing through the source resonator are opposite in phase. Thus, in the region between the feeder and the resonator, the strength of the magnetic field is weakened.

In a loop type resonator, the intensity of the magnetic field is generally weak at the center of the resonator and strong at the outer portion of the resonator. 9A, the feeder is electrically connected to both ends of the capacitor of the resonator, so that the direction of the induction current of the resonator becomes the same as the direction of the input current of the feeder. Since the direction of the induction current of the resonator is the same as the direction of the input current of the feeder, the intensity of the magnetic field inside the feeder is strengthened and the intensity of the magnetic field outside the feeder is weakened. As a result, at the center of the loop-shaped resonator, the strength of the magnetic field is enhanced by the feeder, and the strength of the magnetic field at the outer portion of the resonator is weakened. Therefore, the intensity of the magnetic field can be uniform throughout the resonator.

On the other hand, since the efficiency of the power transmission from the source resonator to the target resonator is proportional to the intensity of the magnetic field generated in the source resonator, the power transmission efficiency can be increased as the strength of the magnetic field is strengthened at the center of the source resonator.

Referring to FIG. 9B, the feeder 940 and the resonator 950 may be represented by an equivalent circuit. The input impedance Zin seen from the feeder 940 when viewed from the resonator side can be calculated as shown in Equation (4).

Here, M denotes the mutual inductance between the feeder 940 and the resonator 950, ω denotes the resonance frequency between the feeder 940 and the resonator 950, and Z denotes the resonance frequency of the resonator 950 on the side of the target device It can mean the impedance seen when you look at it.

Zin can be proportional to the mutual inductance M. Therefore, Zin can be controlled by adjusting the mutual inductance between the feeder 940 and the resonator 950. The mutual inductance M can be adjusted according to the area of the region between the feeder 940 and the resonator 950. The area of the region between the feeder 940 and the resonator 950 can be adjusted according to the size of the feeder 940. [ Since Zin can be determined according to the size of the feeder 940, no separate matching network is needed to perform the output impedance and impedance matching of the power amplifier.

The target resonator and the feeder included in the wireless power receiving apparatus may have the distribution of the magnetic field as described above. The target resonator may receive radio power from the source resonator through magnetic coupling. At this time, an induced current can be generated in the target resonator through the received radio power. The magnetic field generated by the induced current in the target resonator can generate an induced current in the feeder again. At this time, when the target resonator and the feeder are connected as in the structure of FIG. 9A, the direction of the current flowing in the target resonator becomes the same as the direction of the current flowing in the feeder. Therefore, the strength of the magnetic field is strengthened inside the feeder, and the strength of the magnetic field in the region between the feeder and the target resonator can be weakened.

The apparatus described above may be implemented as a hardware component, a software component, and / or a combination of hardware components and software components. For example, the apparatus and components described in the embodiments may be implemented within a computer system, such as, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable array (FPA) A programmable logic unit (PLU), a microprocessor, or any other device capable of executing and responding to instructions. The processing device may execute one or more software applications that are executed on an operating system (OS) and an operating system. The processing device may also access, store, manipulate, process, and generate data in response to execution of the software. For ease of understanding, the processing apparatus may be described as being used singly, but those skilled in the art will recognize that the processing apparatus may have a plurality of processing elements and / As shown in FIG. For example, the processing unit may comprise a plurality of processors or one processor and one controller. Other processing configurations are also possible, such as a parallel processor.

The software may include a computer program, code, instructions, or a combination of one or more of the foregoing, and may be configured to configure the processing device to operate as desired or to process it collectively or collectively Device can be commanded. The software and / or data may be in the form of any type of machine, component, physical device, virtual equipment, computer storage media, or device , Or may be permanently or temporarily embodied in a transmitted signal wave. The software may be distributed over a networked computer system and stored or executed in a distributed manner. The software and data may be stored on one or more computer readable recording media.

The method according to an embodiment may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer-readable medium. The computer readable medium may include program instructions, data files, data structures, and the like, alone or in combination. Program instructions to be recorded on the medium may be those specially designed and constructed for the embodiments or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI > or equivalents, even if it is replaced or replaced.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

400: High Pass System
410: power transmission device
420: Vehicle sensing device
430: high pass terminal
431: vehicle

Claims (18)

A power terminal for transmitting power generated according to a predetermined condition to a communication controller; And
A communication control unit for communicating with the tollgate installation equipment using the electric power to perform the charging process;
Gt; terminal. ≪ / RTI > The method according to claim 1,
The above-
When the vehicle arrives at the tollgate, at least one of the cases where the vehicle passes through the tollgate
. The method according to claim 1,
A power receiving unit for receiving the power generated by the tollgate installation equipment according to the predetermined conditions by wireless power transmission;
. The method according to claim 1,
The power stage,
A power storage unit for pre-charging the power transmitted to the communication control unit,
. 5. The method of claim 4,
A power harvesting section for producing power for charging the power storage section,
And a high pass terminal. 5. The method of claim 4,
An additional function section for providing high-pass-related information to the driver of the vehicle
And a high pass terminal. A vehicle sensing device for generating vehicle arrival information according to predetermined conditions;
A power transmitting device for transmitting electric power to a high pass terminal installed in a vehicle based on the vehicle arrival information; And
A high-pass terminal for performing a charging process using the power received from the power transmission device,
/ RTI > 8. The method of claim 7,
The predetermined condition is
Wherein at least one of the detection of the arrival of the vehicle and the detection of the passage of the vehicle
/ RTI > 8. The method of claim 7,
The power transmitting apparatus includes:
And wirelessly transmitting power to the high-
High pass system. 8. The method of claim 7,
Wherein the vehicle sensing device comprises:
At least one of a vehicle classifying device, a photographing device, and a weight sensor
/ RTI > 8. The method of claim 7,
The vehicle arrival information includes:
At least one of the speed, location, size, arrival time and expected passage time of the vehicle
/ RTI > Receiving power generated according to a predetermined condition; And
Communicating with the tollgate installation equipment using the power to perform the charging process
≪ / RTI > 13. The method of claim 12,
Wherein the step of receiving power generated according to the predetermined condition comprises:
Receiving the power generated when the tollgate installation equipment senses arrival of the vehicle or passage of the vehicle
≪ / RTI > 13. The method of claim 12,
Wherein the step of receiving power generated according to the predetermined condition comprises:
Receiving power wirelessly from the tollgate installation equipment
≪ / RTI > Generating vehicle arrival information according to a predetermined condition;
Transmitting power to the high pass terminal based on the vehicle arrival information; And
And communicating with the high-pass terminal driven by the transmitted power to perform a charging operation
≪ / RTI > 16. The method of claim 15,
Wherein the step of generating vehicle arrival information according to the predetermined condition comprises:
Detecting the arrival of the vehicle or detecting passage of the vehicle, generating the vehicle arrival information
≪ / RTI > 16. The method of claim 15,
Wherein the step of transmitting power to the high pass terminal based on the vehicle arrival information comprises:
Transmitting power to the high-pass terminal wirelessly
≪ / RTI > 17. A computer readable storage medium having stored thereon one or more programs comprising instructions for causing a computer to perform the method of any one of claims 12 to 17.

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