CN117240324A - Data transmission method and data transmission system based on power carrier - Google Patents
Data transmission method and data transmission system based on power carrier Download PDFInfo
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- CN117240324A CN117240324A CN202311273421.7A CN202311273421A CN117240324A CN 117240324 A CN117240324 A CN 117240324A CN 202311273421 A CN202311273421 A CN 202311273421A CN 117240324 A CN117240324 A CN 117240324A
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Abstract
The application discloses a data transmission method and a data transmission system based on a power carrier. A data transmission method based on a power carrier comprises the following steps: step 1: the information sender and the information receiver pre-configure a wireless signal path and a power carrier path; step 2: the information sender and the information receiver pre-configure the signal duty ratio of a wireless signal path and a power carrier path and an information coding mode; step 3: the information sender divides information to be sent into a string of 2-system codes to obtain an information string of original information; dividing original information into a first information segment and a second information segment which are alternately arranged according to a preset signal duty ratio and an information coding mode; in the technical scheme provided by the application, the first information string and the second information string are processed by using the data processing model.
Description
Technical Field
The application relates to the technical field of power carriers, in particular to a data transmission method and a data transmission system based on power carriers.
Background
Power carriers are a communication technology that uses a power path to transmit signals. The high-frequency signal is superimposed on an alternating-current power line, so that the functions of data transmission, communication and control on a power path are realized. The power carrier technology can effectively utilize the existing power path infrastructure, avoiding additional wiring costs.
In communication of a power transmission line, communication is often performed using a power carrier technology. However, the power carrier technology generally uses a high-frequency signal to perform communication during operation. This communication scheme, or communication link, has a high communication rate, which is very fast when transmitting data.
However, during the use process, the power waveform transmitted in the power line is easily distorted due to the factor of signal interference, so that when information is read, important signals are lost, and the receiving end cannot recover the signals. In this way, the signal transmitter and the signal receiver need to repeatedly transmit information, and thus the transmission efficiency of information is low.
Disclosure of Invention
The summary of the application is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. The summary of the application is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
In order to solve the technical problem caused by easy distortion of high-frequency signals in the application process of the power carrier technology, some embodiments of the present application provide a data transmission method based on the power carrier, which includes the following steps:
step 1: the information sender and the information receiver pre-configure a wireless signal path and a power carrier path;
step 2: the information sender and the information receiver pre-configure the signal duty ratio of a wireless signal path and a power carrier path and an information coding mode;
step 3: the information sender divides information to be sent into a string of 2-system codes to obtain an information string of original information;
dividing original information into a first information segment and a second information segment which are alternately arranged according to a preset signal duty ratio and an information coding mode;
sequentially arranging all the first information segments to obtain a first information string, and sequentially arranging all the second information segments to obtain a second information string;
the first information string is sent to an information receiver through a power carrier channel, and the second information string is sent to the information receiver through a wireless signal channel;
step 4: the information receiving method receives a first information string and a second information string of a power carrier path and a wireless signal path simultaneously, then inputs the first information string and the second information string into a data processing model, and the data processing model restores the first information string and the second information string into original information based on a big data model and an information coding mode.
In the technical scheme provided by the application, after dividing original information into a first information string and a second information string according to a preset mode, an information sender respectively sends the first information string and the second information string to an information receiver by using two independent wireless signal paths, and the information receiver simultaneously receives the first information string and the second information string and processes the first information string and the second information string by using a data processing model; therefore, under the technical scheme provided by the application, the data processing model can refer to the information in the second information string when the first information string is processed, so that the problem of low communication efficiency caused by the fact that communication is required to be carried out again due to the lack of accurate reference when part of information in the first information string is wrong is avoided. Therefore, compared with the traditional single-mode power carrier information transmission mode, the double-mode signal transmission mode adopts the power carrier signal path and the wireless signal path to simultaneously transmit information, and has stronger anti-interference capability in the use process.
Further, the communication frequency of the wireless signal path is smaller than the signal frequency of the power carrier path.
The communication frequency of the wireless signal path is smaller than the signal frequency of the power carrier path, so that the information of the wireless signal path is guaranteed to have better penetrability and anti-interference capability, and the information distortion amount of the second information string is guaranteed to be small.
Further, the ratio of the single first information segment to the single second information segment is not less than 5.
In this scheme, the ratio of the single first information segment to the single second information segment is not less than 5, so more information will be transmitted on the power carrier path and less information will be transmitted on the wireless signal path. Therefore, most of information is transmitted in a high-frequency information mode, so that the signal transmission efficiency is ensured, the second information string transmitted by the wireless signal network is low in communication efficiency, but the total amount of required communication is small, so that the information of the second information section and the information of the first information section can be synchronously transmitted to an information receiver, and the marking information can be accurately in place under the condition of ensuring the communication rate.
Further, the ratio of the single first information segment to the single second information segment is equal to the ratio of the signal frequency of the power carrier path to the communication frequency of the wireless signal path.
In the scheme provided by the application, the ratio of the single first information segment to the single second information segment is equal to the ratio of the signal frequency of the power carrier channel to the communication frequency of the wireless signal channel, so that the total amount of information received by the information receiver through the wireless signal network and the total amount of information received by the power carrier network are equal to the ratio of the single first information segment to the single second information segment in the total amount of information received by the information receiver under the same time, and the split information string can be ensured to be just restored under the condition of ensuring the maximum information propagation rate.
When communication is performed by using the power carrier path, although the communication frequency is high and the communication rate is fast, it is unavoidable that the communication signal is distorted. In terms of expression, it is a power waveform sent by the information sender, where each waveform is complete, and the change of the high level and the low level in the waveform can be clearly read out according to the waveform, but in the information received by the information receiving method, waveform distortion of signals occurs, and the distortion of the waveforms mainly appears in: the amplitude decays, so that the information receiver, upon receiving these signals, cannot recover the correct information from the signal waveform, and communication is blocked. For example, if the amplitude decays severely, the difference between the high and low levels cannot be resolved, and it is not known whether each waveform represents a high level or a low level.
Aiming at the problem, the application provides the following technical scheme:
the information receiver takes the signal frequency band capable of reading out obvious waveforms in the first information band and all the signal frequency bands in the second information band as fixed signal frequency bands, takes the rest of the signal frequency bands in the first information band as variable signal frequency bands, inputs the fixed signal frequency bands and the variable signal frequency bands into a data processing model, and the data processing model recovers the information of the variable signal frequency bands according to the information of the fixed signal frequency bands.
In the actual communication process, the signal waveform transmitted by the power carrier signal path is unlikely to generate a large-area distortion phenomenon, so that a large part of waveform can be directly read, the part of waveform can be directly read, and the signal transmitted by the wireless signal path is added, so that for a data processing model, most of real information can be known, and the rest part of information can be restored through the data processing model, thereby ensuring that an information receiver can accurately receive the information transmitted by the information sender.
Further, the data processing model is a BiLM model.
The BiLM model is a common neural network model and can search and compare forward and backward at the same time, so that in actual application, the lost information in the power carrier signal path can be accurately recovered.
As a second aspect of the present application, some embodiments of the present application provide a power carrier based data transmission system, including: the system comprises a plurality of signal processing nodes and a plurality of information processing nodes, wherein the plurality of signal processing nodes are in signal connection with the wireless signal path through a power carrier path to form a communication network, and each information processing node comprises:
the control module is internally provided with a data processing model;
the wireless communication module is used for transmitting wireless signals outwards and receiving the wireless signals so as to form a constructed wireless signal path;
the power carrier module is used for converting the low-frequency data signal into a high-frequency signal and then superposing the high-frequency signal on a power line or converting the high-frequency signal on the power line into the low-frequency data signal;
the information processing node realizes data transmission by using the data transmission method based on the power carrier.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application, are incorporated in and constitute a part of this specification. The drawings and their description are illustrative of the application and are not to be construed as unduly limiting the application.
In addition, the same or similar reference numerals denote the same or similar elements throughout the drawings. It should be understood that the figures are schematic and that elements and components are not necessarily drawn to scale.
In the drawings:
fig. 1 is a flowchart of a data transmission method based on a power carrier.
FIG. 2 is a schematic diagram of original information decomposed into a first information string and a second information string, which are then transmitted by two signal paths, respectively;
fig. 3 is a schematic structural diagram of a data transmission system based on a power carrier.
Detailed Description
Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various 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. It should be understood that the drawings and embodiments of the present disclosure are for illustration purposes only and are not intended to limit the scope of the present disclosure.
It should be noted that, for convenience of description, only the portions related to the present application are shown in the drawings. Embodiments of the present disclosure and features of embodiments may be combined with each other without conflict.
The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1 and 2, a data transmission method based on a power carrier includes:
the method comprises the following steps:
step 1: the information sender and the information receiver pre-configure a wireless signal path and a power carrier path.
In step 1, the wireless signal path and the power carrier path configured by the information sender and the information receiver are both bidirectional signal paths, that is, the wireless signal path and the power carrier path can transmit signals in the forward direction or in the reverse direction. The signal sender and the signal receiver are only two opposite concepts. In practical situations, the identities of the two are mutually converted according to the functions performed.
Further, the communication frequency of the wireless signal path is smaller than the signal frequency of the power carrier path. Therefore, the communication rate of the wireless signal path is low, but the penetration capability and the anti-interference capability of the signal path are strong, and the signal transmitted by the line is not easy to distort. The power line carrier has high signal frequency, and the corresponding line has high communication speed, so that information can be transmitted more quickly.
Step 2: the information sender and the information receiver pre-configure the signal duty ratio of the wireless signal path and the power carrier path, and the information coding mode.
In this scheme, the wireless signal path and the power line carrier path are required to transmit the same part of information. Therefore, the information sender and the information receiver are required to know in advance how to split a string of information into two parts, so that the information receiver can restore the information when receiving the information of two signal paths.
Thus, the signal duty ratio in step 2 is: the number of bytes of the single first information segment and the single second information segment; the information coding mode is as follows: the rule of division of the first information segment and the second information segment.
For example: the signal duty cycle is set as: the number of bytes of the first information segment is 10, the number of bytes of the second information segment is 2, and the information is encoded in such a way that the first information segment and the second information segment are alternately divided.
Thus, for a string of 2-ary encoded raw information; the first 10 bytes of 2 are encoded as a first information segment, two bytes 11-12 are a second information segment, 10 bytes 13-23 are a first information segment, and so on.
Step 3: the information sender divides information to be sent into a string of 2-system codes to obtain an information string of original information;
dividing original information into a first information segment and a second information segment which are alternately arranged according to a preset signal duty ratio and an information coding mode;
sequentially arranging all the first information segments to obtain a first information string, and sequentially arranging all the second information segments to obtain a second information string;
and transmitting the first information string to an information receiver through a power carrier channel, and transmitting the second information string to the information receiver through a wireless signal channel.
Step 3 comprises the following steps:
step 3 comprises the following steps:
step 31: and converting the information to be transmitted into a 2-system code to obtain an information string of the original information.
In the data storage format, any data is stored in the storage in a 2-ary manner, and in step 31, the information to be sent is converted into a 2-ary code, which is essentially the underlying storage logic that extracts the information to be sent, so that the conversion is herein into a 2-ary code, which is just a representation. It is not true that text information is converted into binary information.
Step 32: the original information is divided into first information segments and second information segments which are alternately arranged according to the byte numbers of the single first information segments and the single second information segments and the division rule of the first information segments and the second information segments.
In step 2, or for both the information sender and the information receiver, the signal duty ratio and the signal encoding mode are set, so that the original information can be divided into a first information segment and a second information segment according to a preset rule or mode.
Step 33: extracting a first information segment and a second information segment respectively, arranging all the first information segments in sequence to obtain a first information string, and arranging all the second information segments in sequence to obtain a second information string;
and transmitting the first information string to an information receiver through a power carrier channel, and transmitting the second information string to the information receiver through a wireless signal channel.
In step 33, the original information is divided into a first information string and a second information string, and then sent to the information receiver through two signal paths. At the time of transmission, the original is not simply divided into two parts from the beginning to the end, but is alternately divided into two parts according to the original information.
In step 2 and step 3, the most critical is the way in which the first information piece and the second information piece are divided.
To this end, the application provides the following further solutions:
further, the ratio of the single first information segment to the single second information segment is not less than 5. That is, the ratio of the information amounts of the first information piece and the second information piece is 5:1. In this way, most of the information can be transmitted through the higher-speed power carrier path.
Further, the ratio of the single first information segment to the single second information segment is equal to the ratio of the signal frequency of the power carrier path to the communication frequency of the wireless signal path.
For example: if the ratio of the first information segment to the second information segment is equal to 5, the ratio of the signal frequency of the power carrier path to the communication frequency of the wireless signal path is also 5. Furthermore, it can be ensured that the information transmitted by the power carrier path and the wireless signal path can be just used for restoring the original information in the same time.
Step 4: the information receiving method receives a first information string and a second information string of a power carrier path and a wireless signal path simultaneously, then inputs the first information string and the second information string into a data processing model, and the data processing model restores the first information string and the second information string into original information based on a big data model and an information coding mode.
In step 4, the data processing model is used to process the situation that the power line carrier channel has signal distortion. And the data processing model is a neural network model. Neural network technology is one of the existing technologies, and no difficulty in use is presented to those skilled in the art. It is only necessary here to disclose how the data processing model is trained.
Specific: in step 4: the information receiver takes the signal frequency band capable of reading out obvious waveforms in the first information band and all the signal frequency bands in the second information band as fixed signal frequency bands, takes the rest of the signal frequency bands in the first information band as variable signal frequency bands, inputs the fixed signal frequency bands and the variable signal frequency bands into a data processing model, and the data processing model recovers the information of the variable signal frequency bands according to the information of the fixed signal frequency bands.
In step 4, the waveform system which may not be readable in the first information segment is recorded as a variable signal frequency band, and the blurred information can be restored by a data processing model.
In step 4, training the data processing model by using the history information transmitted by the information sender and the information receiver in advance. In fact, the loss of a portion of the information does not result in the information being unreadable, so the data processing model is able to recover a portion of the information after training.
Referring to fig. 3, example 2: a power carrier based data transmission system, comprising: the system comprises a plurality of signal processing nodes and a plurality of information processing nodes, wherein the plurality of signal processing nodes are in signal connection with the wireless signal path through a power carrier path to form a communication network, and each information processing node comprises:
the control module is internally provided with a data processing model;
the wireless communication module is used for transmitting wireless signals outwards and receiving the wireless signals so as to form a constructed wireless signal path;
the power carrier module is used for converting the low-frequency data signal into a high-frequency signal and then superposing the high-frequency signal on a power line or converting the high-frequency signal on the power line into the low-frequency data signal;
the information processing node realizes data transmission by using the data transmission method based on the power carrier.
The foregoing description is only of the preferred embodiments of the present disclosure and description of the principles of the technology being employed. It will be appreciated by those skilled in the art that the scope of the application in the embodiments of the present disclosure is not limited to the specific combination of the above technical features, but encompasses other technical features formed by any combination of the above technical features or their equivalents without departing from the spirit of the application. Such as the above-described features, are mutually substituted with (but not limited to) the features having similar functions disclosed in the embodiments of the present disclosure.
Claims (10)
1. The data transmission method based on the power carrier is characterized by comprising the following steps:
step 1: the information sender and the information receiver pre-configure a wireless signal path and a power carrier path;
step 2: the information sender and the information receiver pre-configure the signal duty ratio of a wireless signal path and a power carrier path and an information coding mode;
step 3: the information sender divides information to be sent into a string of 2-system codes to obtain an information string of original information;
dividing original information into a first information segment and a second information segment which are alternately arranged according to a preset signal duty ratio and an information coding mode;
sequentially arranging all the first information segments to obtain a first information string, and sequentially arranging all the second information segments to obtain a second information string;
the first information string is sent to an information receiver through a power carrier channel, and the second information string is sent to the information receiver through a wireless signal channel;
step 4: the information receiving method receives a first information string and a second information string of a power carrier path and a wireless signal path simultaneously, then inputs the first information string and the second information string into a data processing model, and the data processing model restores the first information string and the second information string into original information based on a big data model and an information coding mode.
2. The power carrier-based data transmission method according to claim 1, wherein: the communication frequency of the wireless signal path is less than the signal frequency of the power carrier path.
3. The power carrier-based data transmission method according to claim 1, wherein: the ratio of the single first information segment to the single second information segment is not less than 5.
4. The power carrier-based data transmission method according to claim 1, wherein: the ratio of the single first information segment to the single second information segment is equal to the ratio of the signal frequency of the power carrier path to the communication frequency of the wireless signal path.
5. The power carrier-based data transmission method according to claim 1, wherein: the information receiver takes the signal frequency band capable of reading out obvious waveforms in the first information band and all the signal frequency bands in the second information band as fixed signal frequency bands, takes the rest of the signal frequency bands in the first information band as variable signal frequency bands, inputs the fixed signal frequency bands and the variable signal frequency bands into a data processing model, and the data processing model recovers the information of the variable signal frequency bands according to the information of the fixed signal frequency bands.
6. The power carrier-based data transmission method according to claim 1, wherein: the data processing model is a BiLM model.
7. The power carrier-based data transmission method according to claim 1, wherein: the signal duty ratio in the step 2 is as follows: the number of bytes of the single first information segment and the single second information segment; the information coding mode is as follows: the rule of division of the first information segment and the second information segment.
8. The power carrier-based data transmission method according to claim 1, wherein: step 3 comprises the following steps:
step 31: converting the information to be transmitted into a 2-system code to obtain an information string of original information;
step 32: dividing original information into first information segments and second information segments which are alternately arranged according to the byte numbers of the single first information segments and the single second information segments and the dividing rule of the first information segments and the second information segments;
step 33: extracting a first information segment and a second information segment respectively, arranging all the first information segments in sequence to obtain a first information string, and arranging all the second information segments in sequence to obtain a second information string;
and transmitting the first information string to an information receiver through a power carrier channel, and transmitting the second information string to the information receiver through a wireless signal channel.
9. The power carrier-based data transmission method according to claim 1, wherein: in step 4, training the data processing model by using the history information transmitted by the information sender and the information receiver in advance.
10. A power carrier based data transmission system, comprising: the system comprises a plurality of signal processing nodes and a plurality of information processing nodes, wherein the plurality of signal processing nodes are in signal connection with the wireless signal path through a power carrier path to form a communication network, and each information processing node comprises:
the control module is internally provided with a data processing model;
the wireless communication module is used for transmitting wireless signals outwards and receiving the wireless signals so as to form a constructed wireless signal path;
the power carrier module is used for converting the low-frequency data signal into a high-frequency signal and then superposing the high-frequency signal on a power line or converting the high-frequency signal on the power line into the low-frequency data signal;
the information processing node uses the data transmission method based on the power carrier according to any one of claims 1-9 to realize data transmission.
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| CN202311273421.7A CN117240324A (en) | 2023-09-28 | 2023-09-28 | Data transmission method and data transmission system based on power carrier |
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| CN202311273421.7A CN117240324A (en) | 2023-09-28 | 2023-09-28 | Data transmission method and data transmission system based on power carrier |
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