KR20220069656A - Wireless power transmission in camera system - Google Patents

Abstract

Disclosed is a camera device. According to an embodiment of the present specification, a camera device comprises: a camera module; and a body having an accommodation space accommodating a power supply unit supplying power to the camera module. The body further includes a wireless power transmitter for transmitting wireless power to an external device at least one location in the accommodation space. Through this, a wireless power signal can be provided to an external device through an RF antenna built into a surveillance camera device.

Description

WIRELESS POWER TRANSMISSION IN CAMERA SYSTEM

This specification relates to wireless power transmission in a camera system.

Recently, a wireless power transmission method has been adopted as a power supply method for an electronic device. The wireless power transmission method can solve the problem of power line wiring by transmitting power through a non-contact method to a power receiving device disposed at a distance.

The wireless power transmission method can be largely divided into a non-radiative method including an inductive coupling method and a magnetic resonance method, and a radiation method for transmitting power and receiving the RF signal. The non-radiation method is a wireless power transmission method that has been recently used for charging mobile phones, and charging is possible only within a few centimeters.

The non-radiative wireless power transmission method is mainly used when the transmitting side and the receiving side come into contact with each other or in a short distance within 1 to 2 meters, and is a technology that can be mainly used indoors. On the other hand, the radiation method using electromagnetic waves has the advantage of being applicable in a variety of indoor/outdoor environments and a distance of several tens of meters or more.

An object of the present specification is to provide a camera device that can more conveniently wirelessly charge smart devices spaced apart within a predetermined distance by modifying the structure of a surveillance camera installed in an indoor space by utilizing the above-described advantage of wireless power transmission.

The technical problems to be achieved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned are clear to those of ordinary skill in the art to which the present invention belongs from the detailed description of the invention below. can be understood clearly.

A camera device according to an embodiment of the present specification includes: a camera unit; a power supply unit for supplying power to the camera; a base for supporting the camera; A body having an accommodating space accommodating the camera, the power supply, and the base, wherein the body may further include a wireless power transmitter configured to transmit wireless power to an external device in at least one position of the accommodating space.

The body may include a first body that covers the base and a second body that has a dome shape that covers the camera, and the second body may be made of a plastic material.

The first body is made of a metallic material, and the wireless power transmitter is provided in one area of the base, and the one area of the base is the camera unit at a first point where the first body and the second body intersect. It can be an area up to .

The first body may be made of a plastic material, and the wireless power transmitter may be disposed along the entire inner surface of the first body.

A camera device according to another embodiment of the present specification includes a camera; a power supply unit for supplying power to the camera; a base for supporting the camera; a body accommodating the camera, the power supply and the base; and a cover that surrounds and covers at least a portion of the body, wherein the cover includes: a power terminal coupled to an area of the body to receive power supplied from the power supply; a coupling terminal coupled to another region of the body to maintain coupling with the body; and a wireless power transmitter for wirelessly transmitting power to an external device.

The cover may be positioned on the lower surface of the body to surround and cover the lower surface of the body.

The wireless power transmitter may include at least one unit antenna, and the at least one unit antenna may be interconnected with the power terminal through a connector.

The at least one unit antenna may include at least one of a Yagi antenna, a patch antenna, and a PCB-based antenna.

The camera device may be disposed on a ceiling or a wall of an indoor space.

The cover may further include a rotator (rotator) for mechanically steering the beam angle of the wireless power transmitter.

According to an embodiment of the present specification, various smart devices can be more conveniently charged using wireless power transmission technology through various IoT devices capable of supplying power in an indoor space.

According to an embodiment of the present specification, by transmitting a wireless power signal to various smart devices located within a predetermined distance through a surveillance camera installed in an indoor space, it is possible to charge more conveniently.

The effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description. .

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included as a part of the detailed description to help the understanding of the present specification, provide embodiments of the present specification, and together with the detailed description, explain the technical features of the present specification.
1 is a diagram for explaining an example of a wireless power transmission system according to an embodiment of the present specification.
2 is a block diagram of a wireless power transmission system according to an embodiment of the present specification.
3A is an exploded perspective view of a camera device according to an embodiment of the present specification.
3B is an example of a cross-sectional view of a camera device according to an embodiment of the present specification.
3C is a cross-sectional view of a camera device for explaining an example in which the directing direction of a wireless charging antenna is adjusted according to an embodiment of the present specification.
4 is an exploded perspective view of a camera device for explaining another example in which a wireless charging antenna is disposed on a cover of the camera device according to an embodiment of the present specification.
5 is a diagram for explaining an example in which a wireless charging antenna is disposed inside a camera device according to another embodiment of the present specification.
6 is a view for explaining an example in which a wireless charging antenna is disposed inside a camera device according to another embodiment of the present specification.
7 is a view for explaining an example in which a wireless charging antenna is disposed inside a camera device according to another embodiment of the present specification.
BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included as a part of the detailed description to facilitate the understanding of the present invention, provide embodiments of the present invention, and together with the detailed description, explain the technical features of the present invention.

Hereinafter, the embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings, but the same or similar components are assigned the same reference numbers regardless of reference numerals, and redundant description thereof will be omitted. The suffixes "module" and "part" for components used in the following description are given or mixed in consideration of only the ease of writing the specification, and do not have distinct meanings or roles by themselves. In addition, in describing the embodiments disclosed in the present specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in the present specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in the present specification, and the technical idea disclosed herein is not limited by the accompanying drawings, and all changes included in the spirit and scope of the present invention , should be understood to include equivalents or substitutes.

Terms including an ordinal number such as 1st, 2nd, etc. may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but it is understood that other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle.

The singular expression includes the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as “comprises” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

As used hereinafter, the term "wireless power" refers to any form of electric field, magnetic field, electromagnetic field, etc. transmitted from a wireless power transmitter to a wireless power receiver without the use of physical electromagnetic conductors. It is used to mean the energy of Wireless power may also be called a wireless power signal, and may refer to an oscillating magnetic flux enclosed by a primary coil and a secondary coil. Power conversion in a system is described herein for wirelessly charging devices including, for example, mobile phones, cordless phones, iPods, MP3 players, headsets, and the like. In general, a basic principle of wireless power transmission is, for example, a method of transmitting power through magnetic coupling, a method of transmitting power through a radio frequency (RF), and a microwave (microwave) method. ) includes both a method of transmitting power through and a method of transmitting power through ultrasound, but the wireless power transmission method in the present specification will be described using a method of transmitting power through RF as an example.

1 is a diagram for explaining an example of a wireless power transmission system according to an embodiment of the present specification.

Referring to FIG. 1 , a wireless power transmission system 1 according to an embodiment of the present specification includes a wireless power transmitter 100 and a wireless power receiver 10 .

The wireless power transmitter 100 receives power from a power source and generates a radio frequency (RF). The wireless power receiver 10 wirelessly receives power using the generated RF signal.

In addition, the wireless power transmitter 100 and the wireless power receiver 10 may transmit/receive various information required for wireless power transmission. Here, the communication between the wireless power transmitter 100 and the wireless power receiver 10 is in-band communication using a magnetic field used for wireless power transmission or out-band communication using a separate communication carrier. band communication) may be performed according to any one method. Examples of out-band communication may include NFC, Bluetooth (Bluetooth), BLE (Bluetooth low energy), and the like.

On the other hand, the wireless power transmitter 100 may be provided as a fixed type or a mobile type. As an example of the fixed type, as shown in FIG. 1, a type installed on an indoor ceiling, wall, or table, etc., an outdoor parking lot, a type installed in an implant form at a bus stop or a subway station, transportation of a vehicle or a train, etc. There is a form installed in the means, and the like. In the case of the portable type, it may be implemented as a portable device having a movable weight or size or as part of another device such as a cover of a notebook computer.

According to an embodiment of the present specification, the wireless power transmitter 100 includes a surveillance camera device 100 installed on a ceiling or wall of an indoor space.

The surveillance camera device 100 includes a camera module 110, a hemispherical cover 140 that covers the camera module 110, and at least one housing ( 120, 130) may be included.

On the other hand, the wireless power receiver 10 should be interpreted as a comprehensive concept including various electronic devices having a battery and various home appliances that are driven by receiving power wirelessly instead of a power cable. Examples of the wireless power receiver 10 may include an AR/VR device 10a, a mobile phone 10b, a robot 10c, and the like, and furthermore, a personal digital assistant (PDA), portable Media player (PMP: Portable Media Player), Wibro terminal, tablet, phablet, notebook, digital camera, navigation terminal, television, electric vehicle (EV: Electronic Vehicle), etc. may include

Meanwhile, in FIG. 1 , the wireless power transmitter 100 directly transmits power to the wireless power receiver 10 , but there is a wireless connection between the wireless power transmitter 100 and the wireless power receiver 10 . A separate wireless power transmission/reception device such as a relay or repeater for increasing the power transmission distance may be provided. In this case, power may be transferred from the wireless power transmitter 100 to the wireless power transmitter/receiver, and the wireless power transmitter/receiver may transmit power back to the wireless power receiver 10 .

2 is a block diagram of a wireless power transmitter and a wireless power receiver according to an embodiment of the present specification. In FIG. 2 , a wireless power transmitter is a surveillance camera, and a wireless power receiver is a portable terminal as an example.

Referring to FIG. 2 , the surveillance camera 200 may include a camera unit 210 , a communication unit 220 , a driving unit 230 , a control unit 240 , a power supply unit 250 , and a wireless power transmission unit 260 .

The camera unit 210 acquires an image of the area to be monitored.

The communication unit 220 may perform data communication with an external device (portable device, server, etc.) through a network. The communication unit 220 may transmit the captured surveillance image to an external surveillance camera system server or receive a user's control command. The communication unit 220 may receive a wireless charging request from a wireless charging target device existing within the range of the monitoring target area of the camera unit 210 . Communication unit 220 is Bluetooth (Bluetooth), Wi-Fi (Wireless Fidelity, Wi-Fi), near field communication (Near Field Communication; NFC), WiBro (Wireless Broadband Internet, Wibro), ultra-wideband communication (Ultra-Wide Band Communication) , Sub-1G, ZigBee, LoRa, etc. may include a wireless communication module.

The driving unit 230 may perform a panning function of rotating a part of the surveillance camera apparatus 200 . The panning function may refer to, for example, a horizontal rotation operation of a camera having a PTZ function. The surveillance camera device 200 may effectively photograph a subject by using the PTZ function. For example, by panning in the horizontal direction through the operation of the panning driving unit, tilting in the vertical direction through the operation of the tilting driving unit, and enlarging or reducing the sensing target area and/or the subject or object through the operation of the zooming driving unit, monitoring Images of the target area and object can be taken freely.

In addition, according to an embodiment of the present specification, the driving unit 230 may perform an operation of rotating the body of the surveillance camera device itself. For example, when the charging target device is detected in the monitoring target area acquired through the camera unit 210 , the driving unit 230 uses the wireless power transmitter 260 , for example, the directing direction of the wireless charging antenna to be the charging target. It can be controlled to face the device.

On the other hand, according to an embodiment of the present specification, when the wireless charging antenna is adjusted to face the charger due to the direction adjustment of the driving unit 230, the direction of the camera lens may be toward the sensing target area, or may be When the wireless charging antenna is provided in the cover disclosed herein, the camera may rotate only the direction of the cover while the shooting direction is fixed. Also, for example, when the wireless charging antenna is provided inside the housing in which the camera is built, the housing itself may be rotated in the direction of the charging target device while the camera built in the housing is fixed. Also, for example, when a base for supporting the camera exists in the housing and the base is fixed inside the housing, the image acquisition direction of the camera itself may be changed by rotating the housing itself. In this case, after the wireless charging of the external device is completed, the housing may be rotated to return to the original direction so that the direction of the camera lens becomes the direction to be detected.

The controller 240 may control operations of all units constituting the camera device 200 .

The power supply unit 250 may receive power from the outside to supply power to all components of the monitoring camera 200 , and by supplying power to the wireless power transmitter 260 , the wireless power receiver 10 provides wireless power can be sent.

The wireless power transmitter 260 may receive power from the power supply unit 250 , and may convert the received power into wireless power under the control of the controller 240 .

The wireless power transmitter 260 may include a plurality of directional antennas for wireless power signal transmission. A specific directional antenna capable of transmitting a wireless power signal in a specific direction may be selected according to a control command of the controller 240 , and a wireless power signal may be transmitted through the selected directional antenna.

The portable terminal 10 may include a communication unit 11 , a control unit 12 , a power supply unit 13 , and a wireless power receiving unit 14 .

The communication unit 11 may transmit and receive signals (eg, data, control signals) with external devices such as the monitoring camera device 220 . The controller 12 may control various components of the portable terminal 10 to perform various operations. The power supply unit 13 may include a battery that is charged by receiving power from the wireless power receiving unit 14 . The power supply unit 13 may supply power to all components of the portable device. The wireless power receiver 14 receives the wireless power transmitted from the wireless power transmitter 260 of the monitoring camera 220, converts the received wireless power into general power, and supplies it to the charging circuit for charging the power supply 13. can

3A is an exploded perspective view of a camera device according to an exemplary embodiment of the present specification.

Referring to FIG. 3A , according to an embodiment of the present specification, a camera device includes a camera, a base supporting the camera, and a body 410 accommodating a power supply supplying power to the camera. Here, the power unit may be power supplied from the outside of the camera device.

The camera device may include covers 420 and 430 . The cover may include a first cover 420 that surrounds and covers the upper surface of the body 410 and a second cover 430 that surrounds and covers the lower surface of the body 420 . The first cover 420 and the second cover 430 may have a hemispherical shape according to the shape of the body 410 .

According to an embodiment of the present specification, when the surveillance camera device is fixedly installed on the ceiling or a wall in contact with the ceiling of an indoor space, a wireless power transmitter for transmitting wireless power to an external device is provided in the second cover 430 It is preferable to be The wireless power transmitter 150 may be disposed on one surface of the second cover 430 . Exemplarily in FIG. 3A , the wireless power transmitter 150 is disposed along the centerline of the second cover 430 , but respective antenna arrays may be disposed on both sides of the second cover 230 , and The arrangement configuration is not limited to the above-described examples.

The wireless power transmitter 150 may include at least one unit antenna, and the at least one unit antenna may be connected to the power supply unit through a connector.

3B is an example of a cross-sectional view of a camera device according to an embodiment of the present specification.

3B illustrates a coupling configuration of the second cover 430 and the body 410 according to an embodiment of the present specification.

Referring to FIG. 3B , the second cover 430 may be coupled to a region 411 of the body 410 to form a power terminal 431 receiving power supplied from a power supply unit inside the body 410 . .

Illustratively, the power terminal 431 of the second cover 430 is configured in the form of a female terminal, and a region 411 of the body coupled to the female terminal is formed of a male terminal, so that the female terminal 431 and the female terminal 431 are formed of a male terminal. Power is supplied to the second cover 430 through the connection of the male terminals 411 and the contact between the terminals. The male terminal 411 of the body 410 may be configured in the form of an electrode to which power is supplied.

Also, for example, the second cover 430 may include a coupling terminal 432 that is coupled to another region 412 of the body 410 to maintain coupling with the body 410 . The coupling terminal 430 of the second cover 430 may be formed of a male terminal, and a region 412 coupled to the second cover 430 to face the male terminal may be formed as a female terminal. Various fastening structures may be applied to the fastening form of the male terminal 432 of the second cover 430 and the female terminal 412 of the body 410 .

On the other hand, while the power terminal 431 and the coupling terminal 432 provided in the second cover 430 are coupled with the male terminal 411 and the female terminal 412 of the body opposite at the same time, to the second cover 430 At the same time power is supplied to the included wireless power transmitter 150 , the second cover 430 and the body 410 may be coupled.

Meanwhile, the form in which power is supplied to the second cover 430 is not limited to the example described with reference to FIG. 3B and may be implemented with various modifications. For example, the body 410 in which the camera module is embedded may receive power from the outside. An external power source provided from the inside of the ceiling W may be supplied to the body through a wired cable, and the wired cable is directly connected to the second cover 430 to supply power to the wireless power transmitter 150. may be

Also, for example, external power may supply power to the body through the first interface and supply power to the second cover 430 through the second interface. The first interface and the second interface may have a structure in which paths are branched with respect to the same power source to provide external power, respectively.

Meanwhile, the second cover 430 may simultaneously include a first terminal to which an external power source is directly connected and a second terminal for coupling with the body. Accordingly, when external power is supplied to the second cover 430 through the first terminal, power may be simultaneously supplied to the second cover 430 and the body.

3C is a cross-sectional view of a camera device for explaining an example in which the directing direction of a wireless charging antenna is adjusted according to an embodiment of the present specification.

Referring to FIG. 3C , the second cover 430 may include a rotator that mechanically steers the beam angle of the wireless power transmitter. The rotator may be the driving unit 230 of the surveillance camera described with reference to FIG. 2 . In consideration of the relative positions of the wireless power receiver and the monitoring camera, the controller may determine the rotation direction of the second cover 430 .

Alternatively, the monitoring camera device may determine the rotation direction of the second cover 430 by receiving the location information of the wireless charging target device from the external monitoring camera device. For example, although the charging target device does not exist within the range of view of the first monitoring camera device, the charging target device may exist within the effective wireless power transmission range (distance) of the first monitoring camera device. In this case, the first monitoring camera device cannot detect the location of the charging target device, and by receiving the location information of the charging target device from the wirelessly connected second monitoring camera, wireless charging included in the first monitoring camera device It is possible to change the directing direction of the antenna.

Above, according to an embodiment of the present specification, examples in which the wireless power transmitter is disposed on a cover physically separated from the body of the camera device have been described. Hereinafter, an example in which a wireless power transmitter is disposed in an integrated monitoring camera device will be described with reference to the drawings. In this case, the term “integral” means not a structure in which the first cover 420 and the second cover 430 shown in FIG. 3A are physically spaced apart from and fastened to a body in which the camera is embedded, but in which the cover configuration is integrated with the body in which the camera is embedded. It may mean a structure connected by

4 is an exploded perspective view of a camera device for explaining another example in which a wireless charging antenna is disposed on a cover of the camera device according to an embodiment of the present specification.

Referring to FIG. 4 , the surveillance camera may be in the form of a dome camera.

The cover 340 covers the other side opposite to one side of the body 320 coupled to the plate 300 , and may be coupled to the plate 300 . The cover 340 may have an outer peripheral surface formed in a dome shape to correspond to the shape of the camera module 330 . The cover 340 and the plate 300 may be coupled by a fastening member (not shown) capable of screw coupling, such as a bolt.

In the cover 340 , a predetermined area corresponding to the photographing area of the camera module 330 may be treated with a transparent plastic material, and the remaining area may be formed of an opaque plastic material.

The plate 330 may be positioned and fixed to the ceiling of the indoor space. The body 320 in which the camera module 330 is embedded is coupled to the plate 300 , and an attachment part 310 may be further disposed between the body 320 and the plate 330 . The attachment part 310 includes a first attachment member 311 and a second attachment member 312 , and the first attachment member 311 is one surface of the body 320 facing the plate 330 (upper surface in the figure). is coupled to, and the second attachment member 312 may be coupled to one surface (lower surface) of the plate 330 facing the body 320 .

On the other hand, according to an embodiment of the present invention, the wireless power transmitter, for example, at least one RF antenna module (151a, 151b, 151c) may be disposed along the inner surface of the non-transparent region of the cover (340). Therefore, when the plate 300 is fixed to the ceiling of the indoor space, the direction of the at least one RF antenna module (151a, 151b, 151c) is directed toward the direction of the photographing target area of the dome camera.

The opaque region of the cover is made of a plastic material, so that RF signals radiated from the RF antenna modules 151a, 151b, and 151c disposed on the inner side can pass through the cover to reach the wireless power receiver.

5 is a view for explaining an example in which a wireless charging antenna is disposed inside a camera device according to another embodiment of the present specification. Referring to FIG. 5 , unlike the case of FIG. 4 , a wireless power transmitter is not disposed on the inner surface of the cover, but an example in which an RF antenna is disposed on the base 550 supporting the camera module 540 .

The area of the base 550 where the RF antenna is disposed may include an area from a first point where the first body 510 and the second body 520 intersect to the camera module 540 .

More specifically, the body in which the camera is embedded includes a first body 510 covering the base 550 and a dome-shaped second body 520 covering the camera, and the second body 520 . is a plastic dome, and the first body 510 may be a metal body. Accordingly, it is preferable that the wireless power transmitters 530a and 530b be disposed at a position such that the directing direction only faces the second body 520 . The base 550 shown in FIG. 6 is an exemplary position, and it goes without saying that as long as the directing direction of the wireless charging antenna does not point to the metallic body, it may be deformed and disposed in various positions.

6 is a view for explaining an example in which a wireless charging antenna is disposed inside a camera device according to another embodiment of the present specification.

Referring to FIG. 6 , as shown in FIG. 5 , the camera device may be embedded in an integrated cover including the first body 610 and the second body 620 . The first body 610 is an area corresponding to the plate 330 shown in FIG. 4 , and the second body 620 is an area corresponding to the plastic dome. The first body 610 may be made of a plastic material, and the wireless power transmitters 530a and 530b may be integrally formed to extend along the entire inner surface of the first body 610 . That is, when the first body 610 is fixed to the ceiling, the RF antenna is disposed along the entire inner surface of the first body 610 excluding the surface opposite to the ceiling and the camera module 640 area, so that the The emission area may be widened.

7 is a view for explaining an example in which a wireless charging antenna is disposed inside a camera device according to another embodiment of the present specification.

Referring to FIG. 7 , the surveillance camera device may include a body 710 in which a camera module 740 is embedded, and a cover 750 that surrounds and covers at least a portion of the body 710 . Here, the body 710 may be entirely made of a plastic material, and among the inner surfaces of the body 710 , the wireless power transmitter 730 may be disposed along a lower surface facing the floor of the indoor space.

In the above, preferred embodiments of the technology of the present specification have been described with reference to the accompanying drawings. Here, the terms or words used in the present specification and claims should not be construed as being limited to conventional or dictionary meanings, but should be interpreted as meanings and concepts consistent with the technical spirit of the present invention. The scope of the present invention is not limited to the embodiments disclosed herein, and the present invention can be modified, changed, or improved in various forms within the scope of the spirit and claims of the present invention.

Claims (10)

camera unit;
a power supply unit for supplying power to the camera;
a base for supporting the camera;
Including; and a body having an accommodating space for accommodating the camera, the power supply and the base.
The body is
The camera apparatus according to claim 1, further comprising: a wireless power transmitter configured to transmit wireless power to an external device at at least one location in the accommodation space.
The method of claim 1,
The body is
A camera device comprising: a first body covering the base; and a dome-shaped second body covering the camera, wherein the second body is made of a plastic material.
3. The method of claim 2,
The first body is made of a metal material,
The wireless power transmitter is provided in one area of the base,
One area of the base,
and an area from a first point where the first body and the second body intersect to the camera unit.
3. The method of claim 2,
The first body is made of a plastic material,
The wireless power transmitter is a camera device, characterized in that disposed along the entire inner surface of the first body.
camera;
a power supply unit for supplying power to the camera;
a base for supporting the camera;
a body accommodating the camera, the power supply and the base; and
Including; a cover that surrounds and covers at least a portion of the body;
The cover is
a power terminal coupled to a region of the body to receive power supplied from the power supply;
a coupling terminal coupled to another region of the body to maintain coupling with the body; and
a wireless power transmitter for wirelessly transmitting power to an external device;
A camera device comprising a.
6. The method of claim 5,
The cover is
It is located on the lower surface of the body, characterized in that the camera device to surround and cover the lower surface of the body.
6. The method of claim 5,
The wireless power transmitter
comprising at least one unit antenna;
The at least one unit antenna is connected to the power terminal through a connector.
8. The method of claim 7,
the at least one unit antenna
A camera device comprising at least one of a Yagi antenna, a patch antenna, and a PCB-based antenna.
6. The method of claim 5,
The camera device is a camera device, characterized in that it is arranged on the ceiling of the indoor space.
6. The method of claim 5,
The cover is
The camera device further comprising a; a rotator (rotator) for mechanically steering the beam angle of the wireless power transmitter.

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