CN111969733A - Wireless energy emission control device, method and system - Google Patents
Wireless energy emission control device, method and system Download PDFInfo
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- CN111969733A CN111969733A CN202010751474.5A CN202010751474A CN111969733A CN 111969733 A CN111969733 A CN 111969733A CN 202010751474 A CN202010751474 A CN 202010751474A CN 111969733 A CN111969733 A CN 111969733A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
- H02J50/23—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves characterised by the type of transmitting antennas, e.g. directional array antennas or Yagi antennas
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
- H02J50/402—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
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Abstract
The invention discloses a wireless energy emission control device, a method and a system, wherein the wireless energy emission control device comprises a feed network, an antenna array, an emission controller and a receiving detection module; the feed network is connected with the antenna array and used for providing an excitation source for the antenna array and exciting the antenna array to emit electromagnetic waves outwards; the receiving and detecting module is connected with the transmitting controller and used for receiving and detecting power values of a plurality of receiving points in the space and outputting the power values to the transmitting controller; the transmitting controller is also connected with the feed network and used for adjusting the excitation parameters of the feed network according to the power values of the multiple receiving points so as to adjust the transmitting characteristics of the antenna array. According to the embodiment of the invention, the excitation parameters of the feed network are adjusted in real time through the receiving power values fed back by the multiple receiving points, so that the transmitting characteristic of the antenna array is adjusted, the antenna array can meet the energy requirements of different receiving points in space, and the flexibility of the wireless energy transmitting device is improved.
Description
Technical Field
The invention relates to the technical field of wireless energy transmission, in particular to a wireless energy emission control device, method and system.
Background
At present, three electromagnetic induction coupling type, magnetic resonance type and radiation type are summarized as wireless energy transmission modes. The electromagnetic induction type energy transmission technology is mature at present, but the transmission distance of the mode is very short, and the energy transmission can be realized within a millimeter-level distance generally; the magnetic resonance type energy transmission method belongs to the near field wireless transmission technology, a transmission medium is a resonance magnetic field, a high-frequency alternating current electric energy and a receiving coil of the resonance coil generate a same-frequency magnetic field to form a strongly coupled energy transmission tunnel, and energy transmission at a middle distance can be carried out, but the electric energy transmission mode is only researched in a laboratory at present, and the problem of safety realization is serious because the medium is a magnetic field; the radiation type energy transmission technology includes energy transmission based on laser and energy transmission based on electromagnetic wave (microwave), however, the energy transmission based on laser can only be used for line-of-sight transmission and is limited by dust and blocking objects in a transmission path, while the radiation type energy transmission based on electromagnetic wave (microwave) has low cost, can realize long-distance electric energy transmission and is not blocked by dust, is most convenient for electric energy transmission of long-distance equipment and mobile equipment, and has great development value.
However, in the receiving end of the existing wireless energy transmission system, a single transmitting antenna configuration is generally adopted, only a single point is transmitted, the requirement of the multi-node required function in the smart home environment cannot be met, and the position and the angle of the transmitting antenna are fixed during configuration, that is, the radiation characteristic is determined, and the corresponding radiation characteristic adjustment cannot be performed according to the working state of the receiving node.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, an object of the present invention is to provide a wireless energy transmission control apparatus, method and system, which are used to solve the problem that the radiation characteristic of the wireless energy transmission transmitting apparatus in the prior art is single and cannot be flexibly adjusted.
The technical scheme of the invention is as follows:
a wireless energy emission control device comprises a feed network, an antenna array, an emission controller and a receiving detection module; the feed network is connected with the antenna array and used for providing an excitation source for the antenna array and exciting the antenna array to emit electromagnetic waves outwards; the receiving and detecting module is connected with the transmitting controller and used for receiving and detecting power values of a plurality of receiving points in the space and outputting the power values to the transmitting controller; the transmitting controller is also connected with the feed network and used for adjusting the excitation parameters of the feed network according to the power values of the multiple receiving points so as to adjust the transmitting characteristics of the antenna array.
In the wireless energy emission control device, the receiving detection module comprises a plurality of detectors, the detectors are correspondingly arranged at a plurality of receiving points in a space, and the detectors are used for receiving electromagnetic waves of the current receiving points and detecting power values of the electromagnetic waves.
In the wireless energy transmission control device, the transmission controller is specifically configured to compare a power value of each receiving point with a preset threshold, and if the power value is greater than or equal to the preset threshold, record a position of a current receiving point and a current excitation parameter; if the power value is smaller than a preset threshold value, adjusting the excitation parameters of the feed network to change the transmission characteristics of the antenna array until the power value is larger than the preset threshold value.
In the wireless energy emission control device, the excitation parameter at least includes an excitation phase.
In the wireless energy transmission control device, the transmission characteristics at least include a transmission angle.
In the wireless energy emission control device, the antenna array includes a plurality of V-shaped antennas arranged according to a preset rule.
Still another embodiment of the present invention provides a wireless energy transmission control method, including the steps of:
exciting the antenna array to emit electromagnetic waves outwards through the feed network;
receiving and detecting power values of a plurality of receiving points in space;
and adjusting the excitation parameters of the feed network according to the power values of the plurality of receiving points, so as to adjust the transmission characteristic wave of the antenna array.
The adjusting the excitation parameters of the feed network according to the power values of the plurality of receiving points so as to adjust the transmission characteristic waves of the antenna array comprises:
comparing the power value of each receiving point with a preset threshold value, and judging whether the power value of each receiving point is greater than or equal to the preset threshold value or not;
if the power value is greater than or equal to a preset threshold value, recording the position of the current receiving point and the current excitation parameter; if the power value is smaller than a preset threshold value, adjusting the excitation parameters of the feed network to change the transmission characteristics of the antenna array until the power value is larger than the preset threshold value.
Another embodiment of the present invention also provides a wireless energy transmission control system, which includes the wireless energy transmission control device as described above.
Has the advantages that: compared with the prior art, the embodiment of the invention adjusts the excitation parameters of the feed network in real time through the receiving power values fed back by a plurality of receiving points, further adjusts the transmitting characteristics of the antenna array, enables the antenna array to meet the energy requirements of different receiving points in space, and improves the flexibility of the wireless energy transmitting device.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a block diagram of a wireless energy transmission control device according to the present invention.
Fig. 2 is a schematic diagram of an antenna array in the wireless energy transmission control device provided by the present invention.
Fig. 3 is a flowchart of a wireless energy transmission control method according to the present invention.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is described in further detail below. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Embodiments of the present invention will be described below with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a block diagram of a wireless energy transmission control device according to an embodiment of the present invention, where the wireless energy transmission control device according to the embodiment of the present invention includes a feeding network 10, an antenna array 20, a transmission controller 40, and a receiving detection module 30, the feeding network 10 is connected to the antenna array 20, and the transmission controller 40 is connected to the feeding network 10 and the receiving detection module 30, where the feeding network 10 is configured to provide an excitation source for the antenna array 20, and excite the antenna array 20 to transmit an electromagnetic wave outwards; the receiving detection module 30 is configured to receive and detect power values of multiple receiving points in space and output the power values to the transmission controller 40; the transmission controller 40 is configured to adjust excitation parameters of the feeding network 10 according to power values of multiple receiving points, so as to adjust transmission characteristics of the antenna array 20.
In this embodiment, the feeding network 10 provides an excitation source for the antenna array 20, the excitation parameters of the feeding network 10 are controlled by the transmission controller 40, the antenna array 20 transmits electromagnetic waves outwards after inputting energy from the feeding network 10, and points to each receiving point in the smart home environment, the power values of the receiving points in the space are received and detected by the receiving detection module 30 and fed back to the transmission controller 40, the transmission controller 40 correspondingly adjusts the excitation parameters of the feeding network 10 according to the power values fed back by the plurality of receiving points, and further adjust the transmission characteristics of the antenna array 20, so the present embodiment can adjust the excitation parameters of the feeding network 10 and the transmission special effect of the antenna array 20 in real time according to the received power value of the received feedback, the antenna array 20 can meet the energy requirements of different receiving points in space, and the flexibility of the wireless energy transmitting device is improved.
Further, the receiving detection module 30 includes a plurality of detectors corresponding to a plurality of receiving points in the setting space, and the detectors are configured to receive the electromagnetic wave at the current receiving point and detect the power value thereof. In other words, in this embodiment, the receiving and detecting of the electromagnetic wave beam are realized by the detectors, the detectors are correspondingly arranged at a plurality of positions in the smart home environment where energy needs to be received to perform energy receiving and detecting, the power value of the electromagnetic wave at the current receiving point is detected and fed back to the transmitting controller 40, and the feedback adjustment of the transmitting characteristic of the antenna array 20 is realized, so that different receiving points in the smart home environment can share the same set of wireless energy transmitting device, and the compatibility of the wireless energy transmitting control device is improved.
Further, the transmission controller 40 is specifically configured to compare the power value of each receiving point with a preset threshold, and if the power value is greater than or equal to the preset threshold, record the position of the current receiving point and the current excitation parameter; if the power value is smaller than the preset threshold, the excitation parameters of the feed network 10 are adjusted to change the transmission characteristics of the antenna array 20 until the power value is larger than the preset threshold. Preferably, in practical implementation, the transmission controller 40 may use an MCU of STM32 series to implement the determination control process, and of course, in other embodiments, other transmission controllers 40 with the same function may also be used, which is not limited in the present invention.
Specifically, in this embodiment, the antenna array 20 transmits electromagnetic waves outward in the excitation source excitation direction, the power threshold is determined and recorded in the control requirement of the receiving end, the transmission controller 40 specifically compares the power value of each receiving point with a preset threshold, where the preset threshold may be set individually according to the power requirement of each receiving point, or the preset thresholds of all receiving points are uniformly set to the same value, and specifically may be adjusted according to the requirement of an actual application scenario, the excitation parameter of the feeding network 10 is adjusted according to the comparison result to change the transmission characteristic of the antenna array 20, when the power value of one receiving point is greater than or equal to the preset threshold corresponding to the receiving point, the position of the current receiving point and the current excitation parameter are recorded, which indicates that the transmission special effect of the antenna array 20 at this time meets the requirement of the current receiving point, and therefore, the position of the current receiving point and the current excitation parameter are recorded, directly calling the excitation parameter corresponding to the position of the receiving point when the subsequent receiving point needs to receive the wireless energy, when the power value of a receiving point is smaller than the preset threshold corresponding to the receiving point, the excitation parameter of the feed network 10 is continuously adjusted to change the transmission characteristic of the antenna array 20, and after adjustment, the comparison is continuously returned to judge the magnitude of the received power value and the preset threshold until the power value is larger than the preset threshold, it means that the currently adjusted excitation parameters meet the power requirement of the receiving point, and therefore through the continuous feedback adjustment, the antenna array 20 at the transmitting end can meet different energy transmission requirements of multiple receiving points under different excitation parameters, an independent transmitting device does not need to be arranged for each receiving point, the optimal radiation characteristic can be realized only by adjusting the excitation parameters, and the cost for realizing wireless energy transmission requirements of the intelligent household diversified environment is reduced.
In specific implementation, as shown in fig. 2, the antenna array 20 includes a plurality of V-shaped antennas arranged according to a preset rule, each V-shaped antenna is one of traveling wave antennas, and is composed of two long wires, one end of each V-shaped antenna is connected to the feed network 10, and the other end of each V-shaped antenna is opened to form a V-shape, because the high-frequency currents on the V-shaped antenna wires are distributed according to the traveling wave, when the excitation phase changes, the directional characteristic that the beam direction changes along with the change of the beam direction can be obtained on the long side of the antenna, so that the V-shaped antenna is commonly used to be made into a scanning antenna, in addition, the V-shaped antenna has a low profile, low cost, light weight and easy processing.
In this embodiment, a plurality of V-shaped antennas are arranged according to a preset rule, and a specific transmission characteristic is obtained by excitation through the feed network 10, specifically, the excitation parameter at least includes an excitation phase, and the transmission characteristic at least includes a transmission angle, that is, the antenna array 20 is designed, so that the effects of adjusting a beam direction, an antenna gain and the like under the change of the excitation phase can be realized, and an optimal radiation characteristic can be obtained at a corresponding transmission angle through different excitation phases.
To better understand the working process of the wireless energy emission control device provided by the embodiment of the present invention, the following specific application embodiments are described to illustrate the working process of the wireless energy emission control device provided by the embodiment of the present invention:
the antenna array 20 firstly transmits a first beam under the excitation of the feed network 10, a plurality of receiving points in space simultaneously receive energy and execute the same feedback judgment process, for example, the first receiving point performs power detection after receiving the energy, and feeds back a power value to the transmission controller 40, the transmission controller 40 compares the current received energy power value of the first receiving point with the preset threshold value of the receiving point, if the received energy power value is greater than or equal to the preset threshold value, the radiation direction of the current antenna array 20 is considered to be over against the first receiving point, at this time, the transmission characteristic of the antenna array 20 does not need to be adjusted, therefore, the position and the current excitation parameter of the first receiving point are recorded, and the excitation parameter corresponding to the position is directly called when the subsequent first receiving point needs to receive wireless energy; if the received energy power value is smaller than the preset threshold, it is determined that the radiation direction of the current antenna array 20 is deviated from the first receiving point, so the transmit controller 40 controls the antenna array 20 to perform beam scanning, i.e., adjust the transmit angle thereof, perform the receiving, detecting, and comparing determination processes each time the transmit angle is adjusted, until the received energy power value is larger than the preset threshold or all transmit angles are completely scanned, if all transmit angles cannot be satisfied, perform directional scanning, increase the gain of the transmit antenna, and repeat the above processes until the current excitation parameter and receiving point position are recorded after the requirements are satisfied, thereby solving the problem that the single antenna scheme cannot satisfy the spatial distribution of different transmit and receive points, greatly improving the transmission efficiency, and reducing the transmission cost.
Another embodiment of the present invention provides a wireless energy transmission control system, which includes the wireless energy transmission control device as described above, and since the above detailed description of the wireless energy transmission control device is given, the detailed description is omitted here.
An embodiment of the present invention further provides a wireless energy emission control method, as shown in fig. 3, the wireless energy emission control method includes the following steps:
exciting the antenna array to emit electromagnetic waves outwards through the feed network;
receiving and detecting power values of a plurality of receiving points in space;
and adjusting the excitation parameters of the feed network according to the power values of the plurality of receiving points, so as to adjust the transmission characteristic wave of the antenna array.
In the wireless energy transmission control method, the adjusting the excitation parameters of the feed network according to the power values of the multiple receiving points to further adjust the transmission characteristic waves of the antenna array includes:
comparing the power value of each receiving point with a preset threshold value, and judging whether the power value of each receiving point is greater than or equal to the preset threshold value or not;
if the power value is greater than or equal to a preset threshold value, recording the position of the current receiving point and the current excitation parameter; if the power value is smaller than a preset threshold value, adjusting the excitation parameters of the feed network to change the transmission characteristics of the antenna array until the power value is larger than the preset threshold value.
In summary, the wireless energy transmission control apparatus, method and system disclosed in the present invention includes a feeding network, an antenna array, a transmission controller and a receiving and detecting module; the feed network is connected with the antenna array and used for providing an excitation source for the antenna array and exciting the antenna array to emit electromagnetic waves outwards; the receiving and detecting module is connected with the transmitting controller and used for receiving and detecting power values of a plurality of receiving points in the space and outputting the power values to the transmitting controller; the transmitting controller is also connected with the feed network and used for adjusting the excitation parameters of the feed network according to the power values of the multiple receiving points so as to adjust the transmitting characteristics of the antenna array. According to the embodiment of the invention, the excitation parameters of the feed network are adjusted in real time through the receiving power values fed back by the multiple receiving points, so that the transmitting characteristic of the antenna array is adjusted, the antenna array can meet the energy requirements of different receiving points in space, and the flexibility of the wireless energy transmitting device is improved.
The above-described embodiments are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of the embodiment.
Through the above description of the embodiments, those skilled in the art will clearly understand that the embodiments may be implemented by software plus a general hardware platform, and may also be implemented by hardware. With this in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer electronic device (which may be a personal computer, a server, or a network electronic device, etc.) to execute the methods of the various embodiments or some parts of the embodiments.
Conditional language such as "can," "might," or "may" is generally intended to convey that a particular embodiment can include (yet other embodiments do not include) particular features, elements, and/or operations, among others, unless specifically stated otherwise or otherwise understood within the context as used. Thus, such conditional language is not generally intended to imply that features, elements, and/or operations are in any way required for one or more embodiments or that one or more embodiments necessarily include logic for deciding, with or without student input or prompting, whether such features, elements, and/or operations are included or are to be performed in any particular embodiment.
What has been described herein in the specification and drawings includes examples that can provide a wireless energy emission control apparatus, method, and system. It will, of course, not be possible to describe every conceivable combination of components and/or methodologies for purposes of describing the various features of the disclosure, but it can be appreciated that many further combinations and permutations of the disclosed features are possible. It is therefore evident that various modifications can be made to the disclosure without departing from the scope or spirit thereof. In addition, or in the alternative, other embodiments of the disclosure may be apparent from consideration of the specification and drawings and from practice of the disclosure as presented herein. It is intended that the examples set forth in this specification and the drawings be considered in all respects as illustrative and not restrictive. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (9)
1. A wireless energy emission control device is characterized by comprising a feed network, an antenna array, an emission controller and a receiving detection module; the feed network is connected with the antenna array and used for providing an excitation source for the antenna array and exciting the antenna array to emit electromagnetic waves outwards; the receiving and detecting module is connected with the transmitting controller and used for receiving and detecting power values of a plurality of receiving points in the space and outputting the power values to the transmitting controller; the transmitting controller is also connected with the feed network and used for adjusting the excitation parameters of the feed network according to the power values of the multiple receiving points so as to adjust the transmitting characteristics of the antenna array.
2. The wireless energy transmission control device according to claim 1, wherein the reception detection module includes a plurality of detectors corresponding to a plurality of reception points in the installation space, the detectors being configured to receive the electromagnetic wave at a current reception point and detect a power value thereof.
3. The apparatus according to claim 1, wherein the transmission controller is specifically configured to compare a power value of each receiving point with a preset threshold, and if the power value is greater than or equal to the preset threshold, record a position of a current receiving point and a current excitation parameter; if the power value is smaller than a preset threshold value, adjusting the excitation parameters of the feed network to change the transmission characteristics of the antenna array until the power value is larger than the preset threshold value.
4. The wireless energy transmission control device according to claim 1, wherein the excitation parameter includes at least an excitation phase.
5. The wireless energy transmission control device according to claim 1, wherein the transmission characteristic includes at least a transmission angle.
6. The wireless energy transmission control device according to claim 1, wherein the antenna array comprises a plurality of V-shaped antennas arranged in a predetermined rule.
7. A wireless energy transmission control method, comprising the steps of:
exciting the antenna array to emit electromagnetic waves outwards through the feed network;
receiving and detecting power values of a plurality of receiving points in space;
and adjusting the excitation parameters of the feed network according to the power values of the plurality of receiving points, so as to adjust the transmission characteristic wave of the antenna array.
8. The method according to claim 7, wherein the adjusting the excitation parameters of the feeding network according to the power values of the plurality of receiving points, and further adjusting the transmission characteristic waves of the antenna array, comprises:
comparing the power value of each receiving point with a preset threshold value, and judging whether the power value of each receiving point is greater than or equal to the preset threshold value or not;
if the power value is greater than or equal to a preset threshold value, recording the position of the current receiving point and the current excitation parameter; if the power value is smaller than a preset threshold value, adjusting the excitation parameters of the feed network to change the transmission characteristics of the antenna array until the power value is larger than the preset threshold value.
9. A wireless energy transmission control system comprising the wireless energy transmission control device according to any one of claims 1 to 6.
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| CN202010751474.5A CN111969733A (en) | 2020-07-30 | 2020-07-30 | Wireless energy emission control device, method and system |
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| CN202010751474.5A CN111969733A (en) | 2020-07-30 | 2020-07-30 | Wireless energy emission control device, method and system |
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