KR20140101488A

KR20140101488A - The power transmission system and method using laser

Info

Publication number: KR20140101488A
Application number: KR1020130014353A
Authority: KR
Inventors: 나기용; 최수환
Original assignee: 주식회사 케이더파워
Priority date: 2013-02-08
Filing date: 2013-02-08
Publication date: 2014-08-20

Abstract

According to the present invention, in a power transmission system using a laser that transmits power through laser light, a transmission part for outputting a laser is provided with a laser source, a control part, and an emission light control part for adjusting coordinates of laser emission light, The receiving unit for converting and charging the power includes a power conversion module and a control unit. The receiving unit can transmit data to the transmitting unit. The data is information for requesting charging of the laser energy, It is possible to effectively transmit power energy without using a wiring facility for transmitting electricity by making it possible to effectively transmit the laser energy to the receiver and to be able to be charged, .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power transmission system using a laser,

The present invention relates to a power transmission system using a laser, and more particularly, to a system and method for converting power into electrical energy through a laser, and converting the converted optical energy into light energy, To a technique for delivering the same.

A technology has been developed in which an electronic device is equipped with a wireless transmitting and receiving unit to perform wireless charging. [0002] Recent mobile communication terminals have been developed in various forms, and accordingly, there have been various types of charging jacks in the form of various power chargers. As a result, compatibility problems of chargers have been highlighted, but these charging jacks have been standardized to solve the compatibility problems among the chargers.

However, according to the connection terminal system, the standard and shape of the terminal are different from each other, so that the user has to purchase a new charging apparatus every time. In such a case, when the new apparatus is purchased, the conventional charging apparatus is discarded Resulting in a new problem.

In order to solve this problem, a non-contact magnetic induction method, i.e., a wireless charging method has been devised. In the non-contact charging method, a primary circuit that operates at a high frequency is configured in a charging matrix, and a secondary circuit is configured in a battery side, that is, in a portable electronic device or a battery, Of the battery. Non-contact charging methods using inductive coupling have already been used in some applications (eg, electric toothbrushes, electric shavers, etc.).

However, since the wireless charging system uses the electric field, it has a limitation in distance in order to transmit the electric energy. Therefore, development of a non-electric energy electric power transmission system for overcoming the limitation of distance while transmitting electric power wirelessly This is an urgent situation.

It is an object of the present invention to overcome the limitation of the distance over which power energy can be transmitted wirelessly in a power transmission system using a laser, and also, when a receiver requiring laser charging exists in a predetermined charging area, To which power energy through a laser can be supplied.

According to another aspect of the present invention, there is provided a power transmission system using a laser that transmits power through a laser beam. The transmitter includes a laser source, a control unit, and an emission light control unit for adjusting coordinates of laser emission light. , The receiving unit is provided with a power conversion module and a control unit, and the receiving unit can transmit data to the transmitting unit. The data is information for requesting charging of the laser energy and is also information about completion of charging.

The receiving unit is provided with an infrared lamp, and the distance between the infrared lamp and the power converting module is determined.

In addition, there are a plurality of the receiving portions, and a plurality of output portions for outputting the laser energy in the transmitting portion.

The plurality of receiving units are numbered.

According to another embodiment of the present invention, in a power transmission system using a laser for transmitting power through laser light, a transmission part for outputting a laser is provided with a laser source, a control part, and an emission light control part for controlling coordinates of laser emission light, The receiving unit for converting the received laser into electric power is provided with a power conversion module and a control unit. When the transmitting unit transmits the laser energy to the receiving unit, the receiving unit transmits information about receiving the laser energy to the transmitting unit If the laser energy is required to be charged, data for the laser energy charging request is transmitted to the transmission unit.

Then, the laser energy is transmitted to the receiver, and the precise coordinates of the laser receiver are determined based on the laser energy received at a predetermined value or more.

In addition, a plurality of receiving units exist, a sequence is given to the receiving unit, laser energy is transmitted according to the above procedure, a plurality of transmitting units exist, and the plurality of transmitting units simultaneously transmit laser energy to a plurality of receiving units.

According to the present invention, it is possible to efficiently transmit laser energy to a plurality of receiving units to be charged and, at the same time, to receive power energy in an optimum state, so that power energy And the like.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a view showing an embodiment showing a basic configuration of a power transmission system using a laser of the present invention. FIG.
2 is a diagram of an embodiment showing a block diagram of a laser transmitter.
3 is a diagram of an embodiment showing a block diagram of a receiver.
4 is a view of an embodiment showing a galvanometer of the present invention.
5 is a view showing an embodiment of a galvanometer equipped with a distributor.
Fig. 6 is an embodiment showing the principle of the flight system.
7 is a diagram of another embodiment for sensing receiver position.
8 is a diagram showing an embodiment of a flow chart in which laser charging is performed in the present invention.
9 is a diagram of another embodiment of the present invention for determining a receiver.
10 is a view showing an embodiment showing a flow chart of a laser energy transmission method using an infrared lamp.
11 is a diagram illustrating an embodiment including a plurality of receiving units and a plurality of output units.
12 is a diagram of an embodiment showing a method of storing a plurality of receiving unit information.
13 is a diagram of an embodiment showing a flow diagram of a method for obtaining and storing the information of Fig.
Figure 14 is an illustration of an embodiment of a method of delivering laser energy to one receiving unit with one output.
15 is an illustration of an embodiment of a method for delivering laser energy to n receive units with J output units.
16 is a diagram of an embodiment of a laser energy transfer method when only a part of the output n is requested to receive laser energy.

Hereinafter, a power transmission system using a laser according to an embodiment of the present invention will be described in detail.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a view showing an embodiment showing a basic configuration of a power transmission system using a laser of the present invention. FIG.

As shown in the figure, the transmission unit includes a laser source 10 for outputting a laser beam, and a vision system 11 for sensing a reception unit capable of receiving power energy from the laser in a laser charging zone. And an outgoing light adjusting unit for adjusting the coordinates of the laser output light. In the present invention, galvanometers (21, 22, 23) are provided as the emission light coordinate adjusting unit. At this time, the galvanometer (21, 22, 23) is further provided with three each for adjusting the x-coordinate, the y-coordinate and the z-coordinate.

At this time, the laser charging area means an area where laser power reception is possible through the system of the present invention. Therefore, when a receiver having a laser power conversion module is located in the laser charging area, laser power transmission is performed.

If a receiver unit is present in the laser charging area, a device capable of automatically determining that a receiver unit exists in the laser charging area is required. In the present invention, a vision system is provided to perform the above determination algorithm .

On the other hand, the laser used in the present invention uses an infrared laser of 800 nm band, but it is not necessarily possible to use only the above-described infrared laser if the configuration and system of the present invention are applied.

In addition, the galvanometer used in the present invention is used to connect a DC motor to a mirror, and to control the coordinates at which laser light is output, by designing a basic PID controller based on time domain analysis and frequency domain analysis.

That is, the galvanometer of the present invention is a galvanometer in which when a light is incident on an optical interferometer from a light source, a mirror that reciprocally rotates and reflects light, a lens or light through which the light reflected by the mirror passes, Such as a beam splitter. As a result. The optical path of the parallel light of the cross section incident from the light source through the reciprocating motion and the rotational motion is varied to scan or emit light in a desired direction.

In the present invention, the portable terminal is taken as an example of a receiver. When the portable terminal 40 having the power conversion module 30 is present in the laser charging area, laser charging is performed. Here, the power conversion module 30 refers to a module that converts laser light into electrical energy.

2 is a diagram of an embodiment showing a block diagram of a laser transmitter.

In the drawing, the control unit (CPU) 15 is control means for controlling the overall operation of the transmission unit used in the embodiment of the present invention. The memory unit is provided with a ROM for controlling a program to be executed by the display device, a RAM for storing data generated in executing the program, data necessary for the user, And an iipurum for storing data.

The R / F unit 16, which is a communication interface unit, tunes to an RF channel as a radio frequency, amplifies each signal input to the transmission unit, and converts the RF signal received from the antenna into an intermediate frequency signal . Conversely, the control unit converts the provided route into a radio frequency signal and transmits the radio data.

Therefore, the vision system 11 is operated under the control of the control unit (CPU) 15, the laser source 10 outputs the laser, and the control unit (CPU) 15 controls the galvanometer ) 21, 22, and 23, respectively, so that light output from the laser can be output in a desired coordinate (or direction).

Although not shown in the block diagram of the present invention, it is needless to say that the transmission unit of the present invention may further include an input / output device. That is, it means all the usual methods of inputting or outputting information to or from an ordinary computer or a portable terminal. A numeric key, a menu key or a selection key for inputting information at the top of the display, and further includes a speaker and a vibration unit, and a display may be further mounted.

3 is a diagram of an embodiment showing a block diagram of a receiver.

The converter module 30 is a component that serves to convert the laser light energy into electric energy. The receiver connected to the converter module 30 includes a control unit 31, an R / F unit 32, and a memory unit 33. Further, an input / output device 34 capable of outputting and inputting information and a display 35 for displaying information are further provided. Also, a sensor capable of sensing the state of charge of the power unit of the receiving unit is provided.

At this time, it is a matter of course that the R / F unit of the transmitting unit and the receiving unit not only exchange status information of laser power transmission but also exchange information data of the portable terminal. That is, various information can be exchanged by a method of short distance communication such as Zigbee or Wifi.

At this time, a plurality of receiving units may exist, so that the receiving units can perform data communication through the local area network, and the transmitting unit and the receiving unit can also perform data communication. Here, data communication refers not only to exchange of information required for charging the laser power, but also to exchange various information such as image data, moving image data, text data or program data.

4 is a view of an embodiment showing a galvanometer of the present invention.

The galvanometer used in the present invention is a device that controls the direction or coordinates of the light emitted through the laser. A mirror 22a (23a) for reflecting light and a precision motor (22b) (23b) for rotating the mirror are also provided. Therefore, the light 10a emitted from the laser source 10 is reflected by the mirror 22a of the first galvanometer (which determines the coordinate in the x-axis direction) 22, and again reflected by the second galvanometer The light is reflected by the mirror 23a of the light source 23 (which defines the coordinates) to be finally emitted light 10b.

At this time, the precision motors 22b and 23b rotate the mirrors 22a and 23a, and the rotation of the precision motors 22b and 23b is controlled by the control unit 15 of the transmission unit. In the embodiment shown in Fig. 4, the coordinates of the x-axis and the y-axis are adjusted. In some cases, however, the coordinates of the z-axis can also be adjusted.

5 is a view showing an embodiment of a galvanometer equipped with a distributor.

When there are a plurality of receiving units 40, there is a case where there are two or more outgoing lights 10b. In this case, the distributor 24 (the distributor in the present invention means "Optic Splitter") is further provided to separate a plurality of laser beams into a plurality of outgoing lights.

That is, one laser source 10 having a high output is used, and a laser output from the laser source is passed through the distributor 24, so that a plurality of distribution lights 10a-1 and 10a-2 are produced do. In addition, since the plurality of separated light beams pass through the respective galvanometers, the output direction (coordinates) is determined. That is, the first distribution light 10a-1 passes through the first galvanometers 22 and 23 to determine the output direction, the second distribution light passes through the second galvanometer GM, Is determined.

Fig. 5 shows an embodiment in which light emitted from the laser source 10 is divided into two, but actually, it can be divided into 2, 3, 4, or arbitrary J numbers.

Fig. 6 is an embodiment showing the principle of the flight system.

As shown in FIG. 1, a laser-chargeable region is set in the present invention. In FIG. 1, an arbitrary area called a board 50 is set. If there is a device (or cellular phone 40) capable of receiving power through the laser within the set area, the vision system 11 of the transmission unit automatically detects such a state.

5 is a diagram of an embodiment showing the principle of such automatic detection. That is, when the setting area is set to the coordinates as shown in the figure, it is determined which coordinate area the receiving device 40 can exist. That is, the vision system uses a sensor (or CCD device) capable of receiving image data. Accordingly, the vision system 11 in the present invention determines the image form and the coordinate position. In accordance with the above determination, it is determined whether the device is capable of receiving power through the laser, and the coordinates at which the device is located are also determined.

sure. It is possible to determine the coordinate position of the receiving unit 40 by using two sensors (or CCD devices) in order to confirm accurate coordinates.

In addition, a CCD may be used as an example of an element used in the image sensor of the present invention. The CCD element is composed of a plurality of minute capacitors and a switch, and has a function of accumulating charges and sequentially transmitting them. Therefore, it is mainly used for a video camera image plate. An image pickup tube is formed by connecting a photosensor to each fine condenser constituting a CCD and arranging several pieces on a plank. When light enters the sensor, the charge is converted into electric charge and charged to the capacitor. When it is called by sending it in turn, it becomes part of the image shape corresponding to each coordinate.

7 is a diagram of another embodiment for sensing receiver position.

The vision system can determine the presence of the receiving unit 40 (the portable terminal in the present invention) and determine the coordinates. However, various methods may exist for the above determination, and Fig. 7 is an embodiment of another method that can be presented.

That is, the user of the receiving unit displays the receiving unit 40 with the finger, and the control unit 15, which controls the vision system, judges the shape of the hand by a predetermined algorithm and determines the direction, It is possible to judge that it can exist,

That is, when the transmitting unit determines the receiving unit, it is possible to determine the coordinates of the receiving unit and the receiving unit through the image signal of the receiving unit.

8 is a diagram showing an embodiment of a flow chart in which laser charging is performed in the present invention.

When the system is started and the receiver (in the present invention, the mobile terminal is taken as an example) 40 is present in the laser-charging area, the vision system 11 can recognize that the receiver is in the laser- And determines the coordinate position (more precisely, the power conversion module) in the receiver. (S 100 - S 104)

In this method, the control unit 15 of the transmission unit determines the information output from the vision system 11 and the predetermined algorithm stored in the memory unit 17. [

When the above determination is made, the controller 15 controls the laser source 10 to output the laser. At this time, the control unit 15 also controls the precision motors 22b and 23b of the galvanometer so that the laser output light 10b is emitted in the determined coordinate direction.

The power conversion module 30 of the receiving unit 40 receives the laser output light 10 and converts it into electric power and the sensor 36 of the receiving unit senses the converted electric power. At this time, the control unit of the receiving unit determines whether the sensed power value meets the criterion (S 106)

If the reference value is met, the control unit of the receiving unit sends a signal to the transmitting unit via the R / F unit 32 that the reference value is correct. Then, the control unit 15 of the transmitting unit continues to transmit the laser energy to the receiving unit (S 112)

If the power value sensed by the sensor 36 of the receiver does not match the reference value, the control unit of the receiver sends a signal to the transmitter through the R / F unit 32 that the power value does not match the reference value. Then, the control unit 15 of the transmission unit controls the galvanometers 22 and 23 to adjust the coordinates of the laser output light, and then controls the laser source 10 to output the laser output. (S 108 - S 110)

When the laser beam is output as described above, the process proceeds to step 106 again.

On the other hand, when the power value converted by the receiving unit matches the reference value, and the receiving unit continues to charge the power through the laser light and then the charging is completed, the control unit of the receiving unit notifies the transmitting unit via the R / . Then, the control unit 15 of the transmission unit terminates the laser transmission or selects another receiving unit to transmit the laser light (S 116)

When the system is terminated, the entire process is terminated (S 118)

Meanwhile, although the above embodiment has been described on the assumption that one transmitter and one receiver are used, the number of transmitters and receivers may be plural. If there is one transmitter and a plurality of receivers, it is possible to charge them by time division. It is a matter of course that the light emitted from the transmission laser can be divided by the optical distributor and the plurality of reception parts can be simultaneously charged as in the embodiment of the previous drawing.

9 is a diagram of another embodiment of the present invention for determining a receiver.

When there are several receivers. The transmitter can accurately determine the position of the receiver and can easily distinguish among the plurality of receivers that desire to charge the laser.

That is, the receiving unit further includes an infrared lamp 30a, and the control unit 31 of the receiving unit to receive the laser charge emits the infrared lamp 30a. At this time, the infrared lamp 30a does not merely emit light but emits light with a signal system.

The vision system 11 of the transmitter judges the light emission and the signal of the infrared lamp 30a, determines the coordinates to the light emitting position of the infrared lamp, and determines that the receiver is a transmitter that should transmit the laser as the light emitting signal.

Further, the distance "D" between the infrared lamp 30a and the power conversion module 30 is also determined. When the transmitter determines the coordinates of the infrared lamp, the coordinates of the power conversion module 30 can be automatically determined.

10 is a view showing an embodiment showing a flow chart of a laser energy transmission method using an infrared lamp.

When operated on the laser power delivery system, the receiver infrared lamp will transmit the signal (S 120 - S 124)

The control unit 31 of the receiving unit 70 controls the infrared lamp 30a to transmit a predetermined signal. That is, data is transferred using a conventional method of transferring data to an infrared lamp.

The transmitter 60 senses the data signal of the infrared lamp and determines the coordinates of the infrared lamp 30a (S 126)

The control unit 15 of the transmission unit 60 controls the vision system 11 to determine the coordinates of the lamp. At this time, the method of determining coordinates and coordinates is stored in advance in the memory unit 17.

Although not shown in the block diagram of FIG. 2 of the present invention, the transmitter of the present invention may further include an infrared sensor. Accordingly, data transmitted from the infrared lamp of the receiver can be analyzed by the infrared sensor,

Of course, it is also possible to analyze the data transmitted by the infrared lamp through the vision system.

It is determined whether the signal of the infrared lamp 30a is a signal to be received by the laser energy. If the signal is a signal requesting reception of the laser energy, the transmitter transmits the laser energy. (S 128 - S 130)

When the converter module 30 of the receiving unit 70 receives the energy transfer and the charging of the battery is completed, the receiving unit control unit 31 determines that the battery charging is completed, and controls the infrared lamp 30a to transmit the charging completion signal (S 132).

At this time, it is possible to use a method of determining completion of charging of the normal wireless charger battery to judge completion of the battery charging. The infrared lamp 30a is not necessarily used for transmitting the charge completion data. The R / F unit 16 (32) transmitting / receiving method, which is a short distance communication module included in the transmitting / receiving unit of the present invention, can be used.

If it is determined in step 128 that the infrared lamp 30a does not transmit a signal requesting transmission of the laser energy, the infrared lamp transmission data of the other receiver is checked (step S134)

If the laser energy (power) delivery system is terminated, the system is shut down and shut down, but if the laser energy (power) delivery system is not terminated, the laser energy delivery method will be performed again from the beginning. (S 136 - S 140)

11 is a diagram illustrating an embodiment including a plurality of receiving units and a plurality of output units.

In the present invention, a method of transmitting laser energy to one output unit of one receiving unit is presented, but a method of transmitting laser energy to a plurality of n receiving units of one output unit is also suggested.

On the other hand, although there are a plurality of n receiving units, a plurality of laser output units are also provided, so that laser energy can be transmitted more quickly and effectively.

That is, the laser source 10 is further provided with a splitter 24 (also referred to as a "splitter") to divide the laser beam into a plurality of laser beams to produce a plurality of laser beams.

In this embodiment, the light emitted from the laser source 10 is divided into two light beams. In practice, however, the light beams can be divided into 2, 3, 4, or arbitrary J beams.

Therefore, a plurality of laser output portions 61 can be provided.

12 is a diagram of an embodiment showing a method of storing a plurality of receiving unit information.

If there are a plurality of receiving units, the transmitting unit control unit assigns the receiving unit numbers 91 from 1 to n according to a predetermined position.

Then, the position information 92 is also stored by grasping the respective receiver position information. In addition, the method 93 of the data information transmitted by the receiving unit is also stored. For example, when receiving the data information by the low-infrared lamp, it can be a data transmission method of the infrared lamp, and it can be a method of transmitting the short-distance communication data by using the short-range communication network.

In addition, the charged state 94 and the final state signal 95 are also stored during the laser energy transfer process.

On the other hand, the position of the receiving unit may be changed or the receiving unit may be replaced with another device. In this case, the stored data shown in the embodiment of FIG. 12 is changed. For example, if the position of the receiver 2 changes, a new coordinate is obtained and the position is stored. On the other hand, when the device of the third receiving unit is replaced with another device, the information of the third receiving unit is replaced with the information of the new receiving unit.

The controller 15 of the transmitter 60 performs a predetermined algorithm according to a predetermined algorithm to collect and store the receiver information.

13 is a diagram of an embodiment showing a flow diagram of a method for obtaining and storing the information of Fig.

When the power is supplied and activated, the operation of the laser energy delivery system is started (S 180 - S 182)

(S 184), starting from the designated area, and setting the order from 1 to N. (S 184)

In the present invention, it is determined that the receiving unit is a coordinate and the low energy is transmitted to the receiving unit. In this case, as in the embodiment of FIG. 5, there is a coordinate set in the transmitter vision system of the present invention, and coordinate values at which the receiver is located can be obtained from the coordinates. If there are a plurality of receiving units, the order of the first to n-th receiving units is determined. The transmission unit controller 15 performs the above process.

When n = 1, the laser energy is transmitted from the nth receiver. The control unit 15 of the transmitting unit stores the drawing, the energy transmission request information and the coordinates in the memory unit 17 so that the n receiving unit requests the energy transfer (S188-S192)

On the other hand, if the energy transmission request is not made, the receiving unit stores the non-charging request state (S194)

The laser energy transmission and data reception are repeatedly performed with the receiving unit including the circulation process of "n = n + 1 ". When the laser energy delivery system is stopped, the system is terminated. )

Figure 14 is an illustration of an embodiment of a method of delivering laser energy to one receiving unit with one output.

When the power is supplied and operated, the operation of the laser energy transfer system is started (S 150 - S 152)

Starting from the designated area, the order is determined from 1 to N. (S 154)

"n = 1" is set and laser energy is transmitted to the n-th receiving unit (S 156 - s 158)

This process controls the output of the laser source 10 by the control unit 15 of the transmitting unit 60 and also controls the adjustment of the galvanometers 21, 22 and 23 to transmit laser energy to the coordinates at which the receiving unit is located .

When the energy transmission of the nth reception unit is requested, the laser energy is transmitted to the nth reception unit. When the laser energy charging is completed, the nth reception unit transmits the charge completion signal (S 160 - S 164)

At this time, when the energy is transferred and the laser charging is completed, a method of sending a charging completion signal is the same as in the embodiment of Fig. 10 of the present invention.

On the other hand, if the n receiving unit does not request the energy transmission or the laser energy charging is completed in the n receiving unit, the process proceeds to the next step.

That is, "n = n + 1" is set and the laser energy is prepared to be transmitted to the next receiving unit. At this time, it is determined whether or not the n receiving unit exists (S166-S168)

As described in the embodiment of FIG. 12, the receiving unit exists from 1 to n. For example, if n is 12, then there are 12 from 1 to 12 in the receiver. N = 12 ", if" n = n + 1 "is repeatedly performed starting from" n = 1 " N = 13 does not exist. That is, step 168 is a process of an algorithm for determining such a situation.

When the n receiving unit is present, the laser energy transfer system is performed as it is, or laser energy transfer is stopped. (S 170)

In addition, when the system is stopped, the system is shut down (S 172)

15 is an illustration of an embodiment of a method for delivering laser energy to n receive units with J output units.

When the power is supplied, the operation of the laser energy delivery system is started (S 210 - S 212)

(S214), and sets the order of the output units from 1 to J (S216). This process can refer to the embodiment of FIG. 11 . That is, when there are a plurality of transmission unit output units 61, the ordering units are arranged in order from the first to the last.

the laser energy is transmitted to the receiving unit from "n" to "n + J - 1" by setting n = 1 (S 218 - S 220)

For example, if there are three output units 61, the laser energy is transmitted from the receiving unit n to the receiving unit "n + 2 ".

In this case, the n-th receiving section transmits the laser energy to the first output section, the second receiving section transmits the laser energy to the "n + 1" receiving section, and the "n + J- The output unit transmits the laser energy (S 222)

When the charging of the receiver is completed from n to n + J - 1, the controller 31 of the receiving unit 70 sends a charging completion signal from n to n + J - 1.

At this time, when there are a plurality of receivers, the charge completion signals sent by the receivers may be different. Even if the charge completion signal is the same, if the charge completion signal is sent together with the unique number of the receiver, the controller 15 of the transmitter can detect the charge completion signal for each receiver.

Of course, when the charging completion signal is sent to the infrared lamp, the position of the receiving unit can be judged together, so that it is not necessary to distinguish each of the receiving unit.

n "is set to" n = n + J "when the charging of the receiver is completed from n to n + J - 1. Then, it is judged whether or not there is a reception unit of "n + J" (S226-S228)

If there is a receiving unit of "n + J", the laser energy transfer system is performed as it is, otherwise laser energy transmission is stopped. That is, when the system is stopped, the system is shut down (S 228 - S 232)

16 is a diagram of an embodiment of a laser energy transfer method when only a part of the output n is requested to receive laser energy.

(S 240 - S 242). Then, the operation is started from the predetermined area and the order is determined from 1 to N (S 244).

Then, the receiving unit having the charging request is checked among the receiving units (S246)

12, it is possible to distinguish and confirm the receiving unit having the laser energy charging request among the n receiving units. In this process, the transmitter controller 15 can determine the data transmitted from the receiver controller 31 and can distinguish based on the stored information.

(S 248). For example, if the number of receiving units is 1 to 10, and the number of receiving units 2 and 7 is two, If the receiver does not request the energy transfer, it will reorder the remaining receivers except 2 and 7 among 10 receivers.

If there are a plurality of output sections of the laser transmission section, the order is determined from 1 to J. (S 250)

Is set to "K = 1 ", and the laser energy is charged by the circulation method of" K = K + 1 "or" K = K + J- (S252-S254)

Steps 252 and 254 are briefly described as a single step, but they are in accordance with the embodiment of the circulating laser energy filling method of FIGS. 14 and 15 of the present invention.

When the laser energy is charged and the system is stopped, the system of the present invention is ended (S256-S260)

10: Laser source 11: Vision system
15: control unit 16: R / F unit
17: memory section 21: z-axis galvanometer
22: x-axis galvanometer 23: z-axis galvanometer
30: laser power conversion module 40: portable terminal
24; Distributor 10a-1, 10a-2: Distribution light
30a: Infrared lamp 60: Transmitter
61: output unit 70: receiving unit

Claims

In a power delivery system using a laser that transfers power through laser light,
The transmission section for outputting the laser is provided with a laser source, a control section, and an emission light control section for controlling the coordinates of the laser emission light,
The receiver for converting the received laser into electric power and charging the electric power is provided with a power conversion module and a control unit,
Wherein the receiving unit is capable of transmitting data to a transmitting unit, and the data is information for requesting charging of a laser energy and information about completion of charging.

2. The system of claim 1, wherein an infrared lamp is provided in the receiver and a distance between the infrared lamp and the power conversion module is determined.

The laser-based power transmission system according to claim 1, wherein a plurality of reception units exist.

The power transmission system using laser according to claim 1, wherein a plurality of output units for outputting laser energy from the transmission unit are provided.

4. The system of claim 3, wherein the plurality of receivers are numbered.

In a power delivery system using a laser that transfers power through laser light,
The transmission section for outputting the laser is provided with a laser source, a control section, and an emission light control section for controlling the coordinates of the laser emission light,
The receiver for converting the received laser into electric power and charging the electric power is provided with a power conversion module and a control unit,
When the transmitting unit transmits the laser energy to the receiving unit, the receiving unit transmits information about receiving the laser energy to the transmitting unit, or transmits data for the laser energy charging request to the transmitting unit when the laser energy charging is necessary Wherein the laser is a laser.

[6] The method of claim 6, wherein the laser energy is transmitted to the receiver, and the laser power is received at a predetermined value or more.

A method for transmitting power using a laser according to claim 6, wherein a plurality of receivers are present.

The method according to claim 8, wherein the order is given to the receiving unit, and the laser energy is transferred according to the above procedure.

The method of claim 1, wherein the plurality of transmitting units are present, and the plurality of transmitting units simultaneously transmit laser energy to the plurality of receiving units.