CN113131590A - Wireless charging device and communication data encoding method and encoding module thereof - Google Patents
Wireless charging device and communication data encoding method and encoding module thereof Download PDFInfo
- Publication number
- CN113131590A CN113131590A CN201911364056.4A CN201911364056A CN113131590A CN 113131590 A CN113131590 A CN 113131590A CN 201911364056 A CN201911364056 A CN 201911364056A CN 113131590 A CN113131590 A CN 113131590A
- Authority
- CN
- China
- Prior art keywords
- code table
- phase
- data
- wireless charging
- state
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
Abstract
The invention discloses a wireless charging device and a communication data coding method and a coding module thereof, wherein the coding method comprises the following steps: judging the receiving and transmitting states of the wireless charging device, wherein the receiving and transmitting states of the wireless charging device comprise a transmitting state and a receiving state; when the receiving and sending state of the wireless charging device is a sending state, acquiring a current code table phase; establishing a corresponding relation between the sending data and the code table according to the current code table phase, and coding the sending data; changing the phase of the current code table; and outputting the coded transmission data. The wireless charging device encodes and inversely encodes data according to the code table of phase transformation when receiving and transmitting the data, improves the safety and the anti-interference capability of communication data, can save a special chip, and simplifies the system structure.
Description
Technical Field
The invention relates to the technical field of wireless charging, in particular to a wireless charging device and a communication data coding method and a communication data coding module thereof.
Background
The wireless charging technology is a technology for transmitting electric energy from a power supply device to a power consumption device in a wireless transmission manner. Since it is not necessary to use any physical plug and cable for connecting both, the electric device employing the wireless charging technology has an advantage of being conveniently and safely charged. Power supply devices and consumers that employ wireless charging technology are also referred to as contactless energy transfer devices. For example, wireless charging technology has been widely used in mobile terminals such as mobile phones.
However, the various power supply apparatuses respectively employ different power transfer means, such as electromagnetic induction, radio waves, magnetic resonance, and the like, and the various power supply apparatuses respectively support different wireless charging standards, such as Qi standard, A4WP standard, innpofi technology, Wi-Po technology. For a powered device, only the corresponding wireless charging standard is supported to match the power supply device to obtain power. The existing power supply equipment and the existing electric equipment adopt special chips supporting at least one protocol, and are also provided with corresponding receiving antennas and transmitting antennas so as to realize a communication function and a charging control function between the power supply equipment and the electric equipment.
The use of a dedicated chip for wireless charging in the power supply device and the electric power consuming device not only results in a complicated circuit but also supports only a limited type of predetermined protocol, and the dedicated receiving antenna and transmitting antenna also results in an increase in the size of the device.
Therefore, there is a need to provide an improved technical solution to overcome the above technical problems in the prior art.
Disclosure of Invention
In order to solve the technical problems, the invention provides a wireless charging device, a communication data coding method and a coding module thereof, which improve the safety and the anti-interference capability of communication data, save a special chip and simplify the system structure.
The invention provides a method for encoding communication data of a wireless charging device, which comprises the following steps: judging the receiving and transmitting states of the wireless charging device, wherein the receiving and transmitting states of the wireless charging device comprise a transmitting state and a receiving state; when the receiving and sending state of the wireless charging device is a sending state, acquiring a current code table phase; establishing a corresponding relation between the sending data and the code table according to the current code table phase, and coding the sending data; changing the phase of the current code table; and outputting the coded transmission data.
Preferably, the encoding method further includes: when the receiving and sending state of the wireless charging device is a receiving state, receiving data is obtained, and code table phase information contained in the receiving data is obtained according to a communication protocol; judging whether the acquired code table phase information is consistent with the phase information of the current code table; if the obtained code table phase information is consistent with the phase information of the current code table, establishing a corresponding relation between the received data and the code table according to the code table phase information, and performing inverse coding on the received data; and outputting the receiving data after the inverse coding.
Preferably, if the obtained code table phase information does not coincide with the phase information of the current code table, the received data is invalid.
Preferably, encoding the transmission data includes: and arranging the code table phase and the code table data corresponding to the original sending data according to the communication protocol format.
Preferably, the code table includes code table data and code table phases, and the code table phases are phase labels for representing phase information of the code table data.
Preferably, the phase of the current code table is changed to be random, and position interchange between every two phase labels of the phase of the current code table is carried out.
Preferably, the modifying the current code table phase comprises: the modified code table phase is stored.
Preferably, the altered code table phase is not exactly the same as the current code table phase.
Preferably, the current code table phase is changed after system initialization and each use of the current code table phase.
The invention provides an encoding module of a wireless charging device, which comprises: a determination unit configured to determine whether a transmission/reception state of the wireless charging apparatus is a transmission state or a reception state; the acquisition unit is used for acquiring the phase of the stored current code table in a sending state or acquiring the phase information of the code table in the received data in a receiving state; the establishing unit is used for establishing one-to-one corresponding relation between the data and the code table according to the code table phase and coding or de-coding the data; the encoding unit is used for arranging the current code table phase and the code table data corresponding to the original sending data according to the communication protocol format; a changing unit for performing phase transformation on the code table after system initialization and each use of the code table; and the storage unit is used for storing the phase state of the code table after the phase transformation.
According to the present invention, there is provided a wireless charging device comprising: an oscillator for generating a frequency signal; the power amplifier is connected with the oscillator and used for amplifying the frequency signal; the first antenna is connected with the power amplifier through the first matching network, and converts the frequency signal into a radiation field so as to transmit electric energy; the coding module is connected with the first antenna and used for coding or de-coding the communication data according to the transformed code table phase and outputting the coded communication data to the first antenna; and the control module is connected with the demodulation module to acquire the communication data after the inverse coding, is connected with at least one of the oscillator, the power amplifier and the first matching network, and provides a corresponding adjusting signal according to the communication data after the inverse coding.
Preferably, the method further comprises the following steps: the first memory is connected between the first antenna and the coding module and used for caching the coded communication data; and the second memory is connected between the coding module and the control module and used for caching the communication data after the reverse coding.
Preferably, the first memory and the second memory are both first-in first-out data buffers.
The invention has the beneficial effects that: the invention discloses a wireless charging device and a communication data coding method and a coding module thereof, wherein a code table and transmission data are in one-to-one correspondence, and the transmission data are coded by adopting the code table with phase transformation in a transmission state, so that the safety of data communication and the anti-interference performance of the data can be greatly improved.
When the code table information in the received data is consistent with the currently stored code table information, the code table and the received data are in one-to-one correspondence, and the code table with phase transformation is adopted to perform inverse coding on the received data in a receiving state, so that the safety of data communication and the anti-interference performance of the data can be greatly improved.
The code table adopted by the embodiment has simple result, and only the position of the phase label of the code table is changed when the code table is changed, thereby reducing the changing workload and improving the changing efficiency.
When the phase of the code table changes every time, the phase mark of each position can be transposed, and the phase of the code table after each change is not completely the same as the phase of the code table at the previous time, so that the adjacent code tables are different, and the safety of communication data is further improved.
After the phase of the code table is changed every time, the code table is stored, and reading and checking are convenient.
In the encoding module in the wireless charging device, the code table with phase transformation is adopted to encode and inversely encode the communication data, so that the safety of data communication is improved. Meanwhile, the memory is arranged, so that the sending or reading time of data can be adjusted, the data communication quality is improved, and the data loss can be prevented.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings.
Fig. 1 shows a schematic block diagram of a wireless charging system according to the prior art;
fig. 2 shows a schematic block diagram of a wireless charging system according to an embodiment of the invention;
fig. 3 is a flowchart illustrating an encoding method of wireless charging communication data according to an embodiment of the present invention;
FIG. 4 shows a schematic block diagram of a phase state of a code table according to an embodiment of the invention;
fig. 5 is a detailed block diagram of an encoding module in a wireless charging apparatus according to an embodiment of the present invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The present invention will be described in detail below with reference to the accompanying drawings.
Fig. 1 shows a schematic block diagram of a wireless charging system according to the prior art.
As shown in fig. 1, the wireless charging system 100 includes a power supply device 110 and a power consumption device 120, which transmit power therebetween by radio waves.
The power unit 110 generates a radiation field for providing energy transfer in an operational state. Powered device 120 is coupled to the radiated field, extracts electromagnetic energy from the radiated field and generates a charging current to charge battery 131. The power supply device 110 is spaced apart from the powered device 120. In this embodiment, the power sourcing equipment 110 and the powered device 120 are configured according to a mutual resonant relationship. When the resonant frequency of powered device 120 is very close to the resonant frequency of power sourcing equipment 110, power transfer losses between power sourcing equipment 110 and powered device 120 are minimal when powered device 120 is positioned in the "near field" of the radiated field.
The power unit 110 further includes an antenna 116 for providing a means for power transmission, and the powered device 120 further includes an antenna 126 for providing a means for power reception. The parameters of antennas 116 and 126 are set according to the application and the device to be associated therewith. The power transfer of the power sourcing equipment 110 and the powered device 120 is related to the coupling efficiency of the antennas 116 and 126, coupling most of the energy in the near field of the antenna 116 into the antenna 126, rather than propagating most of the energy in the form of electromagnetic waves into the far field. The area around antenna 116 and antenna 126 where this near-field coupling can occur is referred to as a coupling-mode region.
The power supply device 110 further includes an oscillator 111, a power amplifier 112, and a matching network 113. The oscillator 111 is, for example, a voltage-controlled oscillator, and generates an adjustment signal of a desired frequency based on the frequency adjustment signal. The power amplifier 112 amplifies the frequency signal and provides it to the antenna 116 via the matching network 113 to generate a radiated field. The matching network 113 is used to match the impedance of the power supply device 110 to the antenna 116.
The powered device 120 further includes a matching network 121, and a rectifier 122. The matching network 121 is used to match the impedance of the powered device 120 to the antenna 126. The rectifier 122 converts the electric energy received via the antenna 126 into a dc output voltage to charge the battery 131 or directly supply power to the circuit module of the electric device.
In the wireless charging system 100 according to the related art, the powered device 120 and the power supply device 110 may communicate on separate communication channels (e.g., bluetooth, zigbee, cellular, etc.) so as to comply with data communication requirements of the relevant protocol.
Fig. 2 shows a schematic block diagram of a wireless charging system according to an embodiment of the invention.
As shown in fig. 2, the wireless charging system 200 includes a power supply device 210 and a power consumption device 220, which transmit power therebetween in a radio wave manner.
The power unit 210 generates a radiation field for providing energy transfer in an operational state. Powered device 220 is coupled to the radiated field, extracts electromagnetic energy from the radiated field and generates a charging current to charge battery 131. The power supply device 210 is spaced apart from the power consuming device 220. In this embodiment, the power sourcing equipment 210 and the powered device 220 are configured according to a mutual resonant relationship. When the resonant frequency of powered device 220 is very close to the resonant frequency of powered device 210, the power transfer loss between powered device 210 and powered device 220 is minimal when powered device 220 is positioned in the "near field" of the radiated field.
The power unit 210 further includes an antenna 116 for providing a means for power transmission, and the powered device 220 further includes an antenna 126 for providing a means for power reception. The parameters of antennas 116 and 126 are set according to the application and the device to be associated therewith. The power transfer of the power sourcing equipment 210 and the powered device 220 is related to the coupling efficiency of the antennas 116 and 126, coupling most of the energy in the near field of the antenna 116 into the antenna 126, rather than propagating most of the energy in the form of electromagnetic waves into the far field. The area around antenna 116 and antenna 126 where this near-field coupling can occur is referred to as a coupling-mode region.
The power supply device 210 further comprises an oscillator 111, a power amplifier 112, a matching network 113, a control module 114, an encoding module 115, a first memory 117 and a second memory 118. The oscillator 111 is, for example, a voltage-controlled oscillator, and generates an adjustment signal of a desired frequency based on the frequency adjustment signal. The power amplifier 112 amplifies the frequency signal and provides it to the antenna 116 via the matching network 113 to generate a radiated field. The matching network 113 is used to match the impedance of the power supply 210 to the antenna 116. The encoding module 115 is connected to the first antenna 116, and configured to encode or de-encode the communication data according to the transformed code table phase, and output the encoded communication data to the first antenna 116. The first memory 117 is connected to the encoding module 115, and is configured to store encoded transmission data. The second memory 118 is connected to the encoding module 115 for storing the received data after the inverse encoding. The control module 114 is coupled to the second memory 118, retrieves the de-encoded received data from the second memory 118, and generates an adjustment signal for adjusting at least one of the oscillator 111, the power amplifier 112, and the matching network 113 according to the de-encoded received data.
It should be noted that "transmitting data" and "receiving data" described herein do not refer to an action of transmission or reception, but refer to two data forms of transmitted data and received data, respectively. The received data is, for example, configuration data transmitted by the power consuming device 220.
In this embodiment, the First memory 117 and the second memory 118 are FIFO (First In First Out) data buffers. Compared with the common memory, the FIFO data buffer has no external read-write address line, is convenient to use, can increase the data transmission efficiency, process large data stream and match systems with different transmission powers.
It should be noted that the first memory 117 and the second memory 118 may be the same memory or different memories. When the first memory 117 and the second memory 118 are the same memory, the cost can be reduced, and when the first memory 117 and the second memory 118 are different memories, the data transmission and reception efficiency can be improved.
The powered device 220 also includes a matching network 121, a rectifier 122, and a configuration module 123. The matching network 121 is used to match the impedance of the powered device 220 to the antenna 126. The rectifier 122 converts the electric energy received via the antenna 126 into a dc output voltage to charge the battery 131 or directly supply power to the circuit module of the electric device. The configuration module 123 is connected to the antenna 126, and modulates the configuration data into a data signal, which is transmitted to the power supply device 210 via the antenna 126.
In a wireless charging device, antenna 116 combines power transfer and data communication functions. In the operating state, the wireless charging device transmits radio waves of an operating frequency via the antenna 116 to transmit power, and receives radio waves of a communication frequency via the antenna 116 to receive data signals. The wireless charging apparatus is, for example, the power supply device 210 in the wireless charging system 200.
In this embodiment, the coding module of the wireless charging device establishes a one-to-one correspondence relationship between the code table with the phase change and the transmission data or the reception data, encodes the data in the transmission state, and inversely encodes the data in the reception state, so that the security of the communication data and the anti-interference performance of the data can be greatly improved.
Fig. 3 is a flowchart illustrating an encoding method of wireless charging communication data according to an embodiment of the present invention, and fig. 4 is a schematic structural diagram illustrating a phase state of a code table according to an embodiment of the present invention.
As shown in fig. 3, in this embodiment, the method for encoding wireless charging communication data includes the following steps:
in step S1, the transmission/reception state of the wireless charging device is determined.
In this embodiment, the encoding module obtains a transceiving state signal sent by a control module of the wireless charging device, so as to determine a current transceiving state (including a sending state and a receiving state) of the wireless charging device according to the transceiving state signal. The transmitting and receiving state of the wireless charging device can be used for representing the current state of the transmitting and receiving antenna. Such as antenna 116 in fig. 2.
Further, when the determination result shows that the transceiving state of the wireless charging device is the transmission state, steps S11 to S15 are performed. When the determination result indicates that the transceiving state of the wireless charging device is the receiving state, steps S21 to S24 are performed.
In step S11, the current code table phase is obtained.
When the transmitting/receiving state of the wireless charging device is the transmitting state, the stored current code table phase is firstly obtained from the system memory.
Step S12, establishing a corresponding relationship between the transmission data and the code table according to the code table phase, and encoding the transmission data.
After the current code table phase is obtained, a one-to-one corresponding relation is established between the transmitted data and the code table according to the obtained code table phase, and the transmitted data are coded according to the corresponding relation.
Step S13, arranging the code table phase and the code table data corresponding to the original transmission data according to the communication protocol format.
When the sending data is coded, the phase information of the current code table and the code table data corresponding to the original sending data are arranged according to the communication protocol format, so as to obtain the data format in the final sending.
In step S14, the current code table phase is changed.
And after the arrangement is finished, randomly exchanging the position of every two phase labels of all the phases of the current code table. And saves the phase state in system memory.
Furthermore, after the system is initialized and used every time, the code table is subjected to phase transformation according to the system requirements, and the state of the phase is stored in a system memory and can be read at any time.
Referring to fig. 4, the storage structure of the code table phase and the code table data used in the present embodiment will be described in detail.
As shown in fig. 4, in this embodiment, the code table includes a code table phase and code table data, and the code table phase is used to represent phase information of the code table data.
Further, the code table raw data information is stored in a plurality of units of the memory in a spatial array mode, and after the system is initialized, the code table data is fixed in the units. The phase of the code table data, i.e. the code table phase, is a phase label, e.g. in the form of a spatial coordinate, and the phase label (3, 3, 1) in the figure is a phase of the code table data, which is used to characterize the storage location of the corresponding code table data in the memory.
The change of the code table phase is the change of the phase marking position. Whenever the system requires a phase change of the code table, the phase of the code table changes randomly, that is, some two phase labels are transposed randomly, such as the positions of the phase labels (1, 2, 1) and the phase labels (3, 3, 1) are interchanged.
Furthermore, each time the phase of the code table changes, the phase label of each position is transposed, and a control mechanism responsible for transposition operation inside the code table after each transposition ensures that the phase is not completely the same as the phase of the previous code table, so as to ensure that adjacent code tables are different, and further improve the security of communication data.
In the embodiment, only the position of the phase label is exchanged when the phase of the current code table is changed, and the data of the code table is not changed, so that the change workload is reduced, and the change efficiency is improved.
In step S15, the encoded transmission data is output.
In this step, the transmission data arranged according to the communication protocol, i.e. the coded transmission data, is output to the first memory 117 in fig. 2 to be transmitted.
Step S21, obtaining the received data, and obtaining the code table phase information included in the received data according to the communication protocol.
When the receiving and sending state of the wireless charging device is a receiving state, the code table phase information contained in the received data is obtained according to the communication protocol.
Step S22, it is determined whether the acquired phase information of the code table is consistent with the phase information of the current code table.
After the code table phase information contained in the received data is acquired, the code table phase information contained in the received data is compared with the stored phase information of the current code table, if the comparison result is consistent, the code table phase is in accordance, and a corresponding relation can be established.
If the comparison result is not consistent, the received data is invalid, and the received data is not subjected to inverse coding, so that the data processing amount is reduced.
Step S23, establishing a corresponding relationship between the received data and the code table according to the code table phase, and performing inverse coding on the received data.
And if the obtained code table phase information is consistent with the phase information of the current code table, establishing a corresponding relation between the received data and the code table according to the code table phase, and performing inverse coding on the received data.
In step S24, the inversely coded received data is output.
In this step, the received data after the inverse coding is output to the second memory 118 in fig. 2 to be read.
Fig. 5 is a detailed block diagram of an encoding module in a wireless charging apparatus according to an embodiment of the present invention.
As shown in fig. 5, in this embodiment, the encoding module 115 in the wireless charging apparatus specifically includes: a determination unit 1151, an acquisition unit 1152, a creation unit 1153, an encoding unit 1154, a change unit 1155, a storage unit 1156, and a comparison unit 1157.
The determination unit 1151 is configured to determine whether the transmission/reception state of the wireless charging apparatus is a transmission state or a reception state.
The obtaining unit 1152 is connected to the judging unit 1151, and is configured to obtain a stored current code table phase in a sending state, or obtain phase information of a code table in received data in a receiving state.
The establishing unit 1153 is connected to the obtaining unit 1152, and configured to establish a one-to-one correspondence between the data and the code table according to the code table phase, and encode or de-encode the data.
The encoding unit 1154 is connected to the establishing unit 1153, and configured to arrange the current code table phase and the code table data corresponding to the original transmission data according to the communication protocol format.
The changing unit 1155 is connected to the encoding unit 1154, and performs phase conversion on the code table after system initialization and each use of the code table.
The storage unit 1156 is connected to the changing unit 1155, and stores the phase state of the code table after the phase conversion.
The storage unit 1156 is a system memory. In one embodiment, the storage unit 1156 can be implemented by the memory 117 or the memory 118, so that the system structure is simplified and the cost is reduced. In another embodiment, the storage unit 1156 is a memory separate from the memory 117 and the memory 118, so that separate storage of the code table phase and the communication data can be realized, the respective read-write speed can be increased, and the data transceiving efficiency of the wireless charging device can be enhanced.
The comparing unit 1157 is connected to the acquiring unit 1152, the establishing unit 1153 and the storing unit 1156, and is configured to compare and determine whether the phase information of the code table included in the received data is consistent with the phase information of the current code table.
Further, if the phase information of the code table contained in the received data is consistent with the phase information of the current code table, the phase of the code table is in accordance, and a corresponding relation can be established; if the code table phase information contained in the received data is not consistent with the phase information of the current code table, the received information is invalid.
In this embodiment, the encoding module of the wireless charging device establishes a one-to-one correspondence between the code table and the transmission data or the reception data, and encodes and inversely encodes the communication data by using the code table with phase transformation, so that the security of the communication data and the anti-interference performance of the data can be greatly improved. And simultaneously, after the system is initialized and used every time, the code table is subjected to phase transformation, and the state of the phase is stored in a memory, so that the reading and the checking are convenient.
The scheme directly adopts the code table with the phase to match for safe data receiving and sending, so that a wireless charging chip with a communication function and the scheme are not needed, and the system structure is simplified. And the antenna of the wireless charging device has the functions of power transmission and data communication, so that a transmitting antenna and a receiving antenna special for data communication can be omitted.
It should be noted that, in this document, the contained terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: it should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.
Claims (13)
1. A method for encoding communication data of a wireless charging device comprises the following steps:
judging the transceiving state of a wireless charging device, wherein the transceiving state of the wireless charging device comprises a transmitting state and a receiving state;
when the receiving and sending state of the wireless charging device is the sending state, acquiring a current code table phase;
establishing a corresponding relation between the sending data and the code table according to the current code table phase, and coding the sending data;
altering the current code table phase;
and outputting the coded transmission data.
2. The encoding method of claim 1, wherein the encoding method further comprises:
when the receiving and sending state of the wireless charging device is the receiving state, receiving data is obtained, and code table phase information contained in the receiving data is obtained according to a communication protocol;
judging whether the acquired code table phase information is consistent with the phase information of the current code table;
if the obtained code table phase information is consistent with the phase information of the current code table, establishing a corresponding relation between the received data and the code table according to the code table phase information, and performing inverse coding on the received data;
and outputting the receiving data after the inverse coding.
3. The encoding method according to claim 2, wherein the received data is invalid if the obtained phase information of the code table is not consistent with the phase information of the current code table.
4. The encoding method of claim 1, wherein encoding the transmission data comprises:
and arranging the code table phase and the code table data corresponding to the original sending data according to a communication protocol format.
5. The encoding method of claim 1, wherein the code table comprises code table data and the code table phase,
the code table phase is a phase label and is used for representing phase information of the code table data.
6. The encoding method of claim 5, wherein altering the current code table phase is a random two-by-two permutation of all phase labels of the current code table phase.
7. The encoding method of claim 6, wherein altering the current code table phase comprises:
the modified code table phase is stored.
8. The encoding method of claim 7, wherein the altered code table phase is not exactly the same as the current code table phase.
9. The encoding method of claim 1, wherein the current code table phase is altered after system initialization and each use of the current code table phase.
10. An encoding module of a wireless charging device, comprising:
a determination unit configured to determine whether a transmission/reception state of the wireless charging apparatus is a transmission state or a reception state;
an obtaining unit, configured to obtain a stored current code table phase in the sending state, or obtain phase information of a code table in received data in the receiving state;
the establishing unit is used for establishing one-to-one corresponding relation between the data and the code table according to the code table phase and coding or de-coding the data;
the encoding unit is used for arranging the current code table phase and the code table data corresponding to the original sending data according to a communication protocol format;
a changing unit, which is used for carrying out phase transformation on the code table after system initialization and each time the code table is used;
and the storage unit is used for storing the phase state of the code table after the phase transformation.
11. A wireless charging device, comprising:
an oscillator for generating a frequency signal;
the power amplifier is connected with the oscillator and is used for amplifying the frequency signal;
the first antenna is connected with the power amplifier through the first matching network, and converts the frequency signal into a radiation field so as to transmit electric energy;
the encoding module of claim 10, connected to the first antenna, for encoding or de-encoding communication data according to the transformed code table phase, and outputting the encoded communication data to the first antenna; and
and the control module is connected with the demodulation module to acquire communication data after the inverse coding, is connected with at least one of the oscillator, the power amplifier and the first matching network, and provides a corresponding adjusting signal according to the communication data after the inverse coding.
12. The wireless charging apparatus of claim 11, further comprising:
the first memory is connected between the first antenna and the coding module and used for caching the coded communication data;
and the second memory is connected between the coding module and the control module and used for caching the communication data after the de-coding.
13. The wireless charging device of claim 11, wherein the first memory and the second memory are each first-in-first-out data buffers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911364056.4A CN113131590A (en) | 2019-12-26 | 2019-12-26 | Wireless charging device and communication data encoding method and encoding module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911364056.4A CN113131590A (en) | 2019-12-26 | 2019-12-26 | Wireless charging device and communication data encoding method and encoding module thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113131590A true CN113131590A (en) | 2021-07-16 |
Family
ID=76767210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911364056.4A Pending CN113131590A (en) | 2019-12-26 | 2019-12-26 | Wireless charging device and communication data encoding method and encoding module thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113131590A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102498633A (en) * | 2009-09-02 | 2012-06-13 | 高通股份有限公司 | De-tuning in wireless power reception |
| US20130029595A1 (en) * | 2011-07-29 | 2013-01-31 | Qualcomm Incorporated | Communications related to electric vehicle wired and wireless charging |
| CN103023650A (en) * | 2012-12-06 | 2013-04-03 | 深圳市创想天空科技有限公司 | System, data sending end and data receiving end for achieving data transmission through voice |
| US20140159653A1 (en) * | 2012-12-12 | 2014-06-12 | Qualcomm Incorporated | System and method for facilitating avoidance of wireless charging cross connection |
| CN103891156A (en) * | 2011-10-21 | 2014-06-25 | 高通股份有限公司 | Wireless power carrier-synchronous communication |
| CN105556864A (en) * | 2013-03-15 | 2016-05-04 | 凯萨股份有限公司 | Contactless EHF data communication |
| CN107040366A (en) * | 2017-06-07 | 2017-08-11 | 上海哎媲媲网络技术有限公司 | A kind of data ciphering method for carrying effective business information transmission and regular length |
| CN107257259A (en) * | 2017-05-16 | 2017-10-17 | 珠海耀阳电子科技有限公司 | A kind of method that communication and data exchange are carried out using sound wave modulation technique |
| CN107480529A (en) * | 2017-08-21 | 2017-12-15 | 天复（东莞）标准技术有限公司 | A kind of information safety protection system and guard method |
| US20180205256A1 (en) * | 2015-07-24 | 2018-07-19 | Lg Innotek Co., Ltd. | Wireless charging device for vehicle |
-
2019
- 2019-12-26 CN CN201911364056.4A patent/CN113131590A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102498633A (en) * | 2009-09-02 | 2012-06-13 | 高通股份有限公司 | De-tuning in wireless power reception |
| US20130029595A1 (en) * | 2011-07-29 | 2013-01-31 | Qualcomm Incorporated | Communications related to electric vehicle wired and wireless charging |
| CN103891156A (en) * | 2011-10-21 | 2014-06-25 | 高通股份有限公司 | Wireless power carrier-synchronous communication |
| CN103023650A (en) * | 2012-12-06 | 2013-04-03 | 深圳市创想天空科技有限公司 | System, data sending end and data receiving end for achieving data transmission through voice |
| US20140159653A1 (en) * | 2012-12-12 | 2014-06-12 | Qualcomm Incorporated | System and method for facilitating avoidance of wireless charging cross connection |
| CN105556864A (en) * | 2013-03-15 | 2016-05-04 | 凯萨股份有限公司 | Contactless EHF data communication |
| US20180205256A1 (en) * | 2015-07-24 | 2018-07-19 | Lg Innotek Co., Ltd. | Wireless charging device for vehicle |
| CN107257259A (en) * | 2017-05-16 | 2017-10-17 | 珠海耀阳电子科技有限公司 | A kind of method that communication and data exchange are carried out using sound wave modulation technique |
| CN107040366A (en) * | 2017-06-07 | 2017-08-11 | 上海哎媲媲网络技术有限公司 | A kind of data ciphering method for carrying effective business information transmission and regular length |
| CN107480529A (en) * | 2017-08-21 | 2017-12-15 | 天复（东莞）标准技术有限公司 | A kind of information safety protection system and guard method |
Non-Patent Citations (3)
| Title |
|---|
| 李颖华 , 蔡超时 , 宋宜纯: "DSP实现调频高速数据广播解调――软件无线电的解码器方案", 世界电子元器件, no. 11 * |
| 海涛;尚磊;骆武宁;高翔;陈丽敏;梁丰;刘霞;: "运用无线收发模块实现电力参数数据的无线传输", 实验室研究与探索, no. 04, pages 80 - 82 * |
| 韩宇贞，朱华生: "基于Base64编码的数据加密技术", 《南昌水专学报》, pages 190 - 191 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101194432B (en) | Device, module and method for shared antenna operation in communication environment based on RFID technology | |
| CN108695921A (en) | Data back up method, wireless charging device, mobile terminal and storage medium | |
| KR101515479B1 (en) | Multi-mode wireless power receiver and wireless power receiving method thereof | |
| US9362778B2 (en) | Short distance wireless device charging system having a shared antenna | |
| CN103959660B (en) | Dual mode radio communication equipment | |
| CN105897312B (en) | A kind of NFC label interface for energy acquisition and small size optimization | |
| CN101431349A (en) | Wireless memory device, system and method | |
| ATE382502T1 (en) | ELECTRIC MONOWAY WITH NON-CONTACT ENERGY AND DATA TRANSMISSION | |
| KR101486485B1 (en) | Wireless electric power link transmitter of resonance type comprising battery part | |
| CN201904628U (en) | Wireless charging and network integration device | |
| CN105897313B (en) | A kind of NFC communication system and method for optimizing energy acquisition and realizing small sized antenna | |
| CN113131590A (en) | Wireless charging device and communication data encoding method and encoding module thereof | |
| CN105868810B (en) | A kind of NFC reader interface optimized for energy acquisition and small sized antenna | |
| KR102096203B1 (en) | System for Providing Radiational Power by Using Wireless Power Transmission | |
| KR20170125442A (en) | Mobile communication device having RF wireless power transfer system including directional antenna | |
| KR102476560B1 (en) | Systems for energy transmission and data exchange between electronic devices | |
| CN206331386U (en) | Wireless mouse control system based on zigBee communication | |
| CN209627705U (en) | A kind of positioning device | |
| JP4670556B2 (en) | Communication apparatus and method | |
| CN204131515U (en) | A kind of mobile phone signal R-T unit | |
| CN203596830U (en) | Built-in electric power network bridger | |
| CN204481913U (en) | The system of CPU card is read based on mobile audio interface | |
| CN205068449U (en) | Passive label read write line device of two -way discernment of visible light | |
| CN103177227A (en) | Protocol conversion paster of radio-frequency card reader and method for transmitting data with paster | |
| CN211531339U (en) | Internet of things gateway based on wireless communication technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |