Carrier communication method, apparatus and system

Abstract

This application discloses a carrier combiner, a carrier communication method, an apparatus, and a system. The carrier combiner includes: a first power line carrier module connected to a sub-power line for transmitting a first carrier signal via the sub-power line. The first carrier signal is obtained by modulating communication information onto a carrier signal at a first frequency, where the first frequency is the communication frequency of the sub-power line. A second power line carrier module connected to a main power line for transmitting a second carrier signal via the main power line. The second carrier signal is obtained by modulating communication information onto a carrier signal at a second frequency, where the second frequency is the communication frequency of the main power line. A main controller, connected to both the first and second power line carrier modules, controls the power line carrier modules to demodulate and modulate the communication information. This application solves the technical problem of high complexity in communication applications in industrial settings.

Description

Technical Field

[0001] This application relates to the field of communication technology, and more specifically, to a carrier combiner, a carrier communication method, an apparatus, and a system. Background Technology

[0002] In industrial applications, wired communication still mostly uses mature bus communication methods such as RS485 and CAN, which requires the re-laying of communication lines, increasing the complexity and cost of wiring and development. This solution is highly complex and has poor compatibility.

[0003] There is currently no effective solution to the technical problems of high communication complexity in the aforementioned industrial applications. Summary of the Invention

[0004] This application provides a carrier combiner, a carrier communication method, an apparatus, and a system to solve the technical problem of high communication complexity in industrial applications.

[0005] To address the aforementioned technical problems, according to one aspect of this application, a carrier combiner is provided, comprising: a first power line carrier module connected to a sub-power line for transmitting a first carrier signal through the sub-power line, wherein the first carrier signal is obtained by modulating communication information onto a carrier signal of a first frequency, the first frequency being the communication frequency of the sub-power line; a second power line carrier module connected to a main power line for transmitting a second carrier signal through the main power line, wherein the second carrier signal is obtained by modulating the communication information onto a carrier signal of a second frequency, the second frequency being the communication frequency of the main power line; and a master controller connected to both the first and second power line carrier modules for controlling the power line carrier modules to demodulate and modulate the communication information.

[0006] Optionally, the main controller is further configured to: when the first power line carrier module receives the first carrier signal through the sub-power line, modulate the communication information demodulated from the first carrier signal to obtain the second carrier signal, and instruct the second power line carrier module to transmit the second carrier signal through the main power line; when the second power line carrier module receives the second carrier signal through the main power line, modulate the communication information demodulated from the second carrier signal to obtain the first carrier signal, and instruct the first power line carrier module to transmit the first carrier signal through the sub-power line.

[0007] Optionally, the carrier combiner further includes: a clock module connected to the main controller for clock synchronization; a storage module connected to the main controller for caching the communication information, wherein the cached communication information is retrieved according to a preset transmission priority and modulated before being transmitted through the sub-power line or the main power line; and a power supply module connected to the main controller for power supply.

[0008] According to another aspect of the embodiments of this application, a carrier communication system is also provided, comprising: a first communication terminal, wherein the first communication terminal is one of a master and a slave; a sub-power line connected to the first communication terminal for transmitting a first carrier signal, wherein the first carrier signal is obtained by modulating communication information onto a carrier signal of a first frequency, the first frequency being the communication frequency of the sub-power line; a first carrier combiner connected to the first communication terminal via the sub-power line, the first carrier combiner being the aforementioned carrier combiner; and a main power line connected to the first carrier combiner for transmitting a second carrier signal, wherein the second carrier signal is obtained by modulating the communication information onto a carrier signal of a second frequency, the second frequency being the communication frequency of the main power line.

[0009] Optionally, there are multiple first communication terminals, sub-power lines, and first carrier combiners, with each first carrier combiner connected to one of the first communication terminals via a sub-power line.

[0010] Optionally, the carrier communication system further includes: a plurality of second communication terminals and a plurality of second carrier combiners, each second carrier combiner being connected to a second communication terminal via a sub-power line, and each second carrier combiner also being connected to the main power line, wherein the second communication terminal is another of the master and the slave, and the second carrier combiner is the aforementioned carrier combiner.

[0011] Optionally, the plurality of first communication terminals include a first host and a second host, and the plurality of second communication terminals include a first slave and a second slave. Each host sends an information matching frame to the corresponding first carrier combiner. Upon receiving the information matching frame, the first carrier combiner returns a matching response frame, wherein the matching response frame indicates that the sub-power line communication between the host and the first carrier combiner is normal. One first carrier combiner sends a time synchronization frame to the other first carrier combiners. The first carrier combiner that receives the time synchronization frame returns a synchronization response frame to complete clock synchronization. One first carrier combiner sends a link detection frame to the second carrier combiner. The second carrier combiner that receives the link detection frame returns a detection response frame. One first carrier combiner sends a communication link information frame to the other first carrier combiners. The first carrier combiner that receives the communication link information frame returns a link information response frame.

[0012] According to another aspect of the embodiments of this application, a carrier communication method is also provided, comprising: receiving a first carrier signal from a first communication terminal via a sub-power line, wherein the first carrier signal is obtained by modulating communication information onto a carrier signal of a first frequency, the first frequency being the communication frequency of the sub-power line, and the first communication terminal being one of a master and a slave; modulating the communication information demodulated from the first carrier signal onto a carrier signal of a second frequency to obtain a second carrier signal, wherein the second frequency is the communication frequency of the master power line; and transmitting the second carrier signal to a second communication terminal via the master power line, wherein the second communication terminal is the other of the master and the slave.

[0013] Optionally, the communication information demodulated from the first carrier signal is modulated onto a carrier signal of a second frequency to obtain a second carrier signal, including: buffering the communication information demodulated from the first carrier signal into a storage module; reading the communication information from the storage module according to a preset transmission priority, and modulating the communication information onto a carrier signal of a second frequency to obtain the second carrier signal.

[0014] According to another aspect of the embodiments of this application, a carrier communication device is also provided, comprising: a receiving unit, configured to receive a first carrier signal from a first communication terminal via a sub-power line, wherein the first carrier signal is obtained by modulating communication information onto a carrier signal of a first frequency, the first frequency being the communication frequency of the sub-power line, and the first communication terminal being one of a master and a slave; a modulation unit, configured to modulate the communication information demodulated from the first carrier signal onto a carrier signal of a second frequency to obtain a second carrier signal, wherein the second frequency is the communication frequency of the master power line; and a transmitting unit, configured to transmit the second carrier signal to a second communication terminal via the master power line, wherein the second communication terminal is the other of the master and the slave.

[0015] Optionally, the modulation unit is further configured to: buffer the communication information demodulated from the first carrier signal into a storage module; read the communication information from the storage module according to a preset transmission priority, and modulate the communication information onto a carrier signal of a second frequency to obtain the second carrier signal.

[0016] According to another aspect of the embodiments of this application, a computer-readable storage medium is also provided, the storage medium including a stored program that, when executed by a processor, implements the above-described method.

[0017] According to another aspect of the embodiments of this application, an electronic device is also provided, including: one or more processors; and a storage device for storing one or more programs, which, when executed by the one or more processors, cause the one or more processors to implement the method described above.

[0018] According to one aspect of this application, a computer program product or computer program is provided, comprising computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the steps of any of the embodiments of the methods described above.

[0019] By applying the technical solution of this application, the carrier combiner undertakes the role of signal distribution and relay in the communication between the master and slave devices, which can reduce the difficulty of system development, improve system compatibility, and solve the technical problems of high communication complexity in industrial applications. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of an optional carrier combiner according to an embodiment of this application;

[0021] Figure 2This is a schematic diagram of an optional carrier communication system according to an embodiment of this application;

[0022] Figure 3 This is a flowchart of an optional carrier communication method according to an embodiment of this application;

[0023] Figure 4 This is a flowchart of an optional carrier communication method according to an embodiment of this application;

[0024] Figure 5 This is a schematic diagram of an optional carrier communication device according to an embodiment of this application;

[0025] Figure 6 This is a structural block diagram of an electronic device according to an embodiment of this application. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the application. The singular forms “a,” “said,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms, and “multiple” generally includes at least two unless the context clearly indicates otherwise.

[0028] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0029] It should be understood that although the terms first, second, third, etc., may be used to describe certain technical features in the embodiments of this application, these technical features should not be limited to these terms. These terms are only used to distinguish these technical features.

[0030] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”

[0031] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0032] Example 1

[0033] To address the conflict issue in multi-master carrier communication based on power lines, according to one aspect of this application, an embodiment of a carrier combiner is provided, such as... Figure 1 As shown:

[0034] The first power line carrier module 11 is connected to the sub-power line and is used to transmit (either send or receive) a first carrier signal through the sub-power line. The first carrier signal is obtained by modulating communication information onto a carrier signal of a first frequency, which is the communication frequency of the sub-power line.

[0035] The second power line carrier module 12 is connected to the main power line and is used to transmit (or receive or send) a second carrier signal through the main power line. The second carrier signal is obtained by modulating communication information onto a carrier signal at a second frequency, which is the communication frequency of the main power line.

[0036] The main controller 13 (also known as the main MCU) is connected to the first power line carrier module and the second power line carrier module respectively, and is used to control the demodulation and modulation of communication information.

[0037] The main control here has two main functions:

[0038] 1) When the first power line carrier module receives the first carrier signal (i.e., the host or slave sends it through the sub-power line) through the sub-power line, it modulates the communication information demodulated from the first carrier signal to obtain the second carrier signal, and instructs the second power line carrier module to send the second carrier signal to the slave or host through the main power line.

[0039] 2) When the second power line carrier module receives the second carrier signal (i.e., the host or slave device sends it through the sub-power line) through the main power line, it modulates the communication information demodulated from the second carrier signal to obtain the first carrier signal, and instructs the first power line carrier module to send the first carrier signal to the slave or host device through the sub-power line.

[0040] Optionally, the carrier combiner may also include:

[0041] Clock module 14, connected to the main controller, is used for clock synchronization;

[0042] Storage module 15, connected to the main controller, is used to cache communication information. The cached communication information is retrieved according to a preset transmission priority, modulated, and then transmitted through the sub-power line or the main power line.

[0043] Power module 16 is connected to the main controller and is used to provide power.

[0044] In power line-based carrier communication, multiple subcarriers are often used to improve communication speed and channel utilization. However, in complex industrial environments, interference on power line channels is often significant, such as power frequency synchronous pulse interference, power frequency asynchronous pulse interference, colored background interference, narrowband interference, and burst pulse interference. This can lead to an increased risk of bit error rate in multi-subcarrier communication. For example, in the frequency domain, the carrier frequency band and interference frequency band of the power line channel may overlap, causing signal distortion and making it difficult for the receiver to interpret the true data, thus affecting data transmission.

[0045] Through the above embodiments, utilizing carrier combiners to handle signal distribution and relay reduces system development difficulty, improves system compatibility, and solves the technical problems of high communication complexity in industrial applications. Furthermore, using a single carrier band signal on the main power line improves channel communication quality and enables carrier communication between multiple hosts on the same network. Carrier modules with different carrier center frequencies can be flexibly connected on sub-power lines.

[0046] Example 2

[0047] According to one aspect of the embodiments of this application, an embodiment of a carrier communication system is provided, such as... Figure 2 As shown:

[0048] The first communication terminal is either a master or a slave, for example, a master.

[0049] A sub-power line is connected to a first communication terminal and is used to transmit a first carrier signal, wherein the first carrier signal is obtained by modulating communication information onto a carrier signal of a first frequency, and the first frequency is the communication frequency of the sub-power line;

[0050] The first carrier combiner (such as carrier combiners A and B) is connected to the first communication terminal via a sub-power line. The first carrier combiner is the aforementioned carrier combiner.

[0051] The main power line is connected to the first carrier combiner and is used to transmit the second carrier signal. The second carrier signal is obtained by modulating the communication information onto the carrier signal at a second frequency, which is the communication frequency of the main power line.

[0052] There are multiple first communication terminals, sub-power lines, and first carrier combiners. Each first carrier combiner is connected to a first communication terminal through a sub-power line. For example, carrier combiner A is connected to host 1 through a sub-power line, and carrier combiner B is connected to host 2 through a sub-power line.

[0053] The aforementioned carrier communication system may further include: multiple second communication terminals (which are the other of the master and slave terminals, for example, the slave terminal) and multiple second carrier combiners. Each second carrier combiner is connected to a second communication terminal via a sub-power line, and each second carrier combiner is also connected to the master power line. For example, carrier combiner C is connected to slave 1 via a sub-power line, and carrier combiner D is connected to slave 2 via a sub-power line.

[0054] In the technical solution of this application, the carrier combiner undertakes the role of signal distribution and relay, which can reduce the difficulty of controller program development and improve compatibility.

[0055] The above allocation refers to the carrier combiner A and carrier combiner B (the collision detection and other functional logic can be implemented by the carrier combiner) rationally allocating the transmission order of the data transmitted to the main power line according to the data information transmitted by the host (such as transmission rate, baud rate, center frequency of the subcarrier on the sub-power line, etc.), forming a queue; relay refers to the fact that the data frames transmitted by the host to carrier combiner A and carrier combiner B are not modified, and the carrier signals on the sub-power line are relayed to the main power line through the carrier combiner.

[0056] Continuing with the previous example, in the case where the first communication terminal is the master and the second communication terminal is the slave:

[0057] 1) Each host sends an information matching frame to the corresponding first carrier combiner. For example, host 1 sends an information matching frame to carrier combiner A and host 2 sends an information matching frame to carrier combiner B. When the first carrier combiner (such as carrier combiner A and carrier combiner B) receives the information matching frame, it returns a matching response frame. The matching response frame is used to indicate that the sub-power line communication between the host and the first carrier combiner is normal.

[0058] 2) A first carrier combiner sends a time synchronization frame to other first carrier combiners, such as carrier combiner A sending a time synchronization frame to carrier combiner B. The first carrier combiner that receives the time synchronization frame returns a synchronization response frame to complete clock synchronization.

[0059] 3) A first carrier combiner sends a link detection frame to a second carrier combiner. For example, carrier combiner A sends a link detection frame to carrier combiners C and D. The second carrier combiner that receives the link detection frame returns a detection response frame. After that, a first carrier combiner sends a communication link information frame to other first carrier combiners. For example, carrier combiner A sends a communication link information frame to carrier combiner B. The first carrier combiner that receives the communication link information frame returns a link information response frame.

[0060] Using a single carrier band signal on the main power line can improve the communication quality of the channel. A single carrier band signal means that only one carrier signal is used for modulation in the main power line channel at any given time. For example, in the power line channel, only a carrier band signal with a center frequency of 361 kHz is used for modulation, with a bandwidth of 60 kHz. The useful frequency band in the entire channel is 331 kHz-391 kHz.

[0061] This solution enables not only one-to-one communication but also one-to-many communication. For example, in broadcast mode, master 1 can simultaneously control slave 1 and slave 2, achieving one-to-many communication. It includes the following two methods:

[0062] Firstly, a master can send different content to multiple slaves. There are two modes: one is a one-to-one communication at the same time, where master 1 sends data and slave 1 responds, then master 1 sends data and slave 2 responds, and so on, until all slaves have performed the corresponding actions; the other is a one-to-many communication at the same time, where master 1 sends a data frame containing the priority of the slaves' return order and control data for each slave. The priority is determined by the return time of each slave's response frame in mode 1. All slaves receive and extract their own useful data. After receiving the data, the slave with the higher priority sends its response frame first, followed by the slave with the next lower priority, and so on, until master 1 receives all slave response frames. Secondly, multiple slaves can communicate with a master simultaneously. When multiple slaves need to communicate with the master at the same time, slaves that detect an idle bus will feed back data according to their priority, until all slaves have completed data reporting.

[0063] The above scheme utilizes a carrier combiner to distribute and relay signals between the master and slave devices, which reduces the difficulty of system development, improves system compatibility, and solves the technical problems of high communication complexity in industrial applications.

[0064] Example 3

[0065] According to one aspect of the embodiments of this application, an embodiment of a carrier communication method is provided, such as... Figure 3 As shown, the method includes the following steps:

[0066] Step S1: Receive the first carrier signal of the first communication terminal through the sub-power line. The first carrier signal is obtained by modulating the communication information onto the carrier signal of the first frequency. The first frequency is the communication frequency of the sub-power line. The first communication terminal is one of the master and slave.

[0067] Step S2 involves demodulating the communication information from the first carrier signal onto a carrier signal at a second frequency to obtain the second carrier signal. The second frequency is the communication frequency of the main power line.

[0068] Optionally, the communication information demodulated from the first carrier signal can be cached in the storage module; the communication information can be read from the storage module according to the preset transmission priority, and the communication information can be modulated into the carrier signal of the second frequency to obtain the second carrier signal.

[0069] Step S3: Send the second carrier signal to the second communication terminal via the main power line. The second communication terminal is the other of the master and slave devices.

[0070] Through the above steps, the first carrier signal of the first communication terminal is received via the sub-power line. The first carrier signal is obtained by modulating communication information onto a carrier signal at a first frequency, which is the communication frequency of the sub-power line. The first communication terminal is one of the master and slave devices. The communication information demodulated from the first carrier signal is modulated onto a carrier signal at a second frequency, which is the communication frequency of the master power line. The second carrier signal is then transmitted to the second communication terminal via the master power line. The second communication terminal is the other of the master and slave devices. In the communication between the master and slave devices, the carrier combiner undertakes the role of signal distribution and relay, which can reduce the difficulty of system development, improve system compatibility, and solve the technical problems of high communication complexity in industrial applications.

[0071] Example 4

[0072] Using the technical solution of this application, the control signals sent by multiple hosts to the carrier combiner are received and rearranged by the carrier combiner, and coupled to the main power line through the carrier signal on the main power line, realizing carrier communication between multiple hosts. This can reduce the development complexity of the terminal and improve compatibility and communication quality. As an optional embodiment, the following describes... Figure 4 The steps shown further detail the technical solution of this application:

[0073] In step S401, host 1 and host 2 send communication data frames to device A and device B respectively. Device A and device B obtain the communication rates of host 1 and host 2 respectively. Slave 1 and slave 2 send communication data frames to device C and device D respectively. Device C and device D obtain the communication rates of slave 1 and slave 2 respectively. After successful reception, they return response frames respectively.

[0074] For example, when the entire system is powered on, host 1 and host 2 send host information matching frames to device A and device B respectively. The host information matching frame includes the host's baud rate information, carrier center frequency, etc. Slave 1 and slave 2 send slave information matching frames to device C and device D respectively. The slave information matching frames include the slave's baud rate information, carrier center frequency, etc. After receiving the frames, device A, device B, device C, and device D return an acknowledgment frame, indicating that the reception was successful and the communication line between the sub-power lines is normal.

[0075] In step S402, device A and device B synchronize their clocks. After synchronization, the buffer size is divided according to the communication rate of each host, and the sent messages of each host are generated into a queue.

[0076] For example, device A sends a clock information synchronization frame to device B. After receiving it, device B returns a synchronization response frame. The clock information synchronization frame and the synchronization response frame contain the rate information of their respective hosts, including the baud rate of each host, the carrier center frequency of each subcarrier channel, the transmission rate, etc. After completing clock synchronization, devices A and B will reallocate their respective buffers and generate a transmission order queue based on the information in the synchronization frame.

[0077] In step S403, device A sends a link detection frame to device C and device D respectively. After receiving the frame, device C and device D return a response frame respectively.

[0078] For example, after devices A and B complete time synchronization, device A sends link detection frames to devices C and D respectively. Devices C and D complete the matching of slave 1 and slave 2 and return a response frame after receiving the link detection frames.

[0079] In step S404, after receiving the response frames from devices C and D, device A sends the communication link information to device B, and device B returns a response frame upon receiving it.

[0080] For example, after receiving the return frames from devices C and D, device A sends a communication link information frame to device B. After receiving the communication link information frame sent by device A, device B returns an acknowledgment frame, indicating that the communication link between the master and each slave is normal.

[0081] The host's digital control signal is modulated and coupled to the sub-power line by the carrier module. The power line carrier module 1 in the carrier combiner of devices A and B receives and demodulates the signal, converts it into a digital signal, and stores it in the buffer. The power line carrier module 1 has the characteristic of receiving carrier signals in a wide band and is compatible with the access of multi-carrier center frequency modules. According to the generated transmission order queue, the data in the buffer is read and transmitted to the power line carrier module 2. After being modulated by the carrier signal on the main power line, it is coupled to the main power line. Devices C and D receive and demodulate the data and store it in the buffer. Then, the data in the buffer is retrieved, modulated, and coupled to the sub-power line. The slave device receives and demodulates the data and executes the control command.

[0082] In the technical solution of this application, the carrier combiner plays the role of signal distribution and relay, which can reduce the difficulty of controller program development and improve compatibility; the use of a single carrier signal on the main power line can improve the communication quality of the channel; carrier communication between multiple hosts on the same network is realized; and carrier modules with different carrier center frequencies on the sub-power lines can be flexibly connected.

[0083] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0084] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods according to the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods of the various embodiments of this application.

[0085] Example 5

[0086] According to another aspect of the embodiments of this application, an embodiment of a carrier communication apparatus for implementing the above-described carrier communication method is also provided, such as... Figure 5 As shown, the device may include:

[0087] The receiving unit 51 is used to receive a first carrier signal from a first communication terminal via a sub-power line, wherein the first carrier signal is obtained by modulating communication information onto a carrier signal of a first frequency, the first frequency being the communication frequency of the sub-power line, and the first communication terminal being one of a master and a slave.

[0088] The modulation unit 53 is used to modulate the communication information demodulated from the first carrier signal onto the carrier signal of the second frequency to obtain the second carrier signal, wherein the second frequency is the communication frequency of the main power line;

[0089] The transmitting unit 55 is used to transmit the second carrier signal to the second communication terminal via the main power line, wherein the second communication terminal is another of the master and slave units.

[0090] Optionally, the modulation unit is further configured to: buffer the communication information demodulated from the first carrier signal into the storage module; read the communication information from the storage module according to a preset transmission priority, and modulate the communication information into a carrier signal of the second frequency to obtain a second carrier signal.

[0091] Through the aforementioned module, the first carrier signal of the first communication terminal is received via the sub-power line. This first carrier signal is obtained by modulating communication information onto a carrier signal at a first frequency, which is the communication frequency of the sub-power line. The first communication terminal is one of the master or slave devices. The communication information demodulated from the first carrier signal is then modulated onto a carrier signal at a second frequency, which is the communication frequency of the master power line. This second carrier signal is then transmitted to the second communication terminal via the master power line. The second communication terminal is the other of the master or slave devices. In the communication between the master and slave devices, the carrier combiner handles signal distribution and relay, reducing the difficulty of system development, improving system compatibility, and solving the technical problems of high communication complexity in industrial applications.

[0092] It should be noted that the examples and application scenarios implemented by the above modules and corresponding steps are the same, but are not limited to the content disclosed in the above embodiments. It should also be noted that the above modules, as part of the device, can run in a corresponding hardware environment, and can be implemented through software or hardware, wherein the hardware environment includes a network environment.

[0093] Example 6

[0094] This embodiment provides an electronic device, which includes: a processor 201, a memory 202, and a transmission device 203, such as... Figure 6 As shown, the terminal may also include an input / output device 204; wherein:

[0095] The memory 202 can be used to store software programs and modules, such as the program instructions / modules corresponding to the methods and apparatus in the embodiments of this application. The processor 201 executes various functional applications and data processing by running the software programs and modules stored in the memory 202, thereby implementing the methods described above. The memory 202 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 202 may further include memory remotely located relative to the processor 201, and these remote memories can be connected to the terminal via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0096] The aforementioned transmission device 203 is used to receive or send data via a network, and can also be used for data transfer between the processor and memory. Specific examples of the network described above may include wired networks and wireless networks. In one example, the transmission device 203 includes a Network Interface Controller (NIC), which can be connected to other network devices and routers via a network cable to communicate with the Internet or a local area network. In another example, the transmission device 203 is a radio frequency (RF) module, used for wireless communication with the Internet.

[0097] Specifically, memory 202 is used to store application programs.

[0098] The processor 201 can invoke the application stored in the memory 202 through the transmission device 203 to execute the steps in the above embodiments.

[0099] Example 7

[0100] This application provides software for executing the technical solutions described in the above embodiments and preferred embodiments.

[0101] This application provides a non-volatile computer storage medium storing computer-executable instructions that can execute the method for editing content in a document as described in any of the above method embodiments.

[0102] The aforementioned storage medium stores the aforementioned software, and the storage medium includes, but is not limited to, optical discs, floppy disks, hard disks, and rewritable memory.

[0103] The above-described product can perform the methods provided in the embodiments of this application, and has the corresponding functional modules and beneficial effects for performing the methods. Technical details not described in detail in this embodiment can be found in the methods provided in the embodiments of this application.

[0104] The electronic devices described in this application exist in various forms, including but not limited to:

[0105] (1) Mobile communication devices: These devices are characterized by their mobile communication capabilities and primarily aim to provide voice and data communication. These terminals include: smartphones (e.g., iPhones), multimedia phones, feature phones, and low-end phones, etc.

[0106] (2) Ultra-mobile personal computer devices: These devices fall under the category of personal computers, possessing computing and processing capabilities, and generally also have mobile internet access features. These terminals include PDAs, MIDs, and UMPCs, such as the iPad.

[0107] (3) Portable entertainment devices: These devices can display and play multimedia content. This category includes: audio and video players (e.g., iPods), handheld game consoles, e-book readers, as well as smart toys and portable car navigation devices.

[0108] (4) Server: A device that provides computing services. The components of a server include a processor, hard disk, memory, device bus, etc. Servers are similar to general computer architectures, but because they need to provide highly reliable services, they have higher requirements in terms of processing power, stability, reliability, security, scalability, and manageability.

[0109] (5) Other electronic devices with data interaction functions, such as televisions and in-vehicle screens.

[0110] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0111] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0112] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A carrier communication system, characterized in that, include: The first communication terminal is one of the master and slave devices; A sub-power line, connected to the first communication terminal, is used to transmit a first carrier signal, wherein the first carrier signal is obtained by modulating communication information onto a carrier signal of a first frequency, and the first frequency is the communication frequency of the sub-power line; The first carrier combiner is connected to the first communication terminal via a sub-power line; The main power line is connected to the first carrier combiner and is used to transmit a second carrier signal, wherein the second carrier signal is obtained by modulating the communication information onto a carrier signal of a second frequency, and the second frequency is the communication frequency of the main power line; The first carrier combiner includes: A first power line carrier module is connected to a sub-power line and is used to transmit a first carrier signal through the sub-power line. The first carrier signal is obtained by modulating communication information onto a carrier signal at a first frequency, where the first frequency is the communication frequency of the sub-power line. The second power line carrier module is connected to the main power line and is used to transmit a second carrier signal through the main power line. The second carrier signal is obtained by modulating the communication information onto a carrier signal at a second frequency, where the second frequency is the communication frequency of the main power line. The main controller is connected to the first power line carrier module and the second power line carrier module respectively, and is used to control the demodulation and modulation of the communication information.

2. The carrier communication system according to claim 1, characterized in that, The main controller is also used for: When the first power line carrier module receives the first carrier signal through the sub-power line, the communication information demodulated from the first carrier signal is modulated to obtain the second carrier signal, and the second power line carrier module is instructed to send the second carrier signal through the main power line; When the second power line carrier module receives the second carrier signal through the main power line, it modulates the communication information demodulated from the second carrier signal to obtain the first carrier signal, and instructs the first power line carrier module to transmit the first carrier signal through the sub-power line.

3. The carrier communication system according to claim 1 or 2, characterized in that, The first carrier combiner further includes: A clock module, connected to the main controller, is used for clock synchronization; A storage module, connected to the main controller, is used to cache the communication information. The cached communication information is retrieved according to a preset transmission priority, modulated, and then transmitted through the sub-power line or the main power line. The power module is connected to the main controller and is used to provide power.

4. The carrier communication system according to claim 1, characterized in that, There are multiple first communication terminals, sub-power lines, and first carrier combiners, and each first carrier combiner is connected to one of the first communication terminals through a sub-power line.

5. The carrier communication system according to claim 1, characterized in that, The carrier communication system also includes: Multiple second communication terminals and multiple second carrier combiners are provided. Each second carrier combiner is connected to a second communication terminal via a sub-power line. Each second carrier combiner is also connected to the main power line. The second communication terminal is another of the master and slave terminals. The second carrier combiner has the same structure as the first carrier combiner.

6. The carrier communication system according to claim 5, characterized in that, The first communication terminal is the master, and the second communication terminal is the slave. Each host sends an information matching frame to the corresponding first carrier combiner. Upon receiving the information matching frame, the first carrier combiner returns a matching response frame, wherein the matching response frame is used to indicate that the sub-power line communication between the host and the first carrier combiner is normal. One of the first carrier combiners sends a time synchronization frame to the other first carrier combiners. The first carrier combiners that receive the time synchronization frame return a synchronization response frame to complete the clock synchronization. One of the first carrier combiners sends a link detection frame to the second carrier combiner. Upon receiving the link detection frame, the second carrier combiner returns a detection response frame. One of the first carrier combiners sends a communication link information frame to the other first carrier combiners. Upon receiving the communication link information frame, the first carrier combiner returns a link information response frame.

7. A carrier communication method, characterized in that, Applied to a carrier communication system as described in any one of claims 1 to 6, the method comprises: The first carrier signal of the first communication terminal is received through the sub-power line, wherein the first carrier signal is obtained by modulating the communication information onto the carrier signal of the first frequency, the first frequency being the communication frequency of the sub-power line, and the first communication terminal being one of the master and slave devices. The communication information demodulated from the first carrier signal is modulated onto a carrier signal of a second frequency to obtain a second carrier signal, wherein the second frequency is the communication frequency of the main power line; The second carrier signal is transmitted to a second communication terminal via the main power line, wherein the second communication terminal is the other of the master and slave devices.

8. The carrier communication method according to claim 7, characterized in that, The communication information demodulated from the first carrier signal is modulated onto a carrier signal of a second frequency to obtain a second carrier signal, including: The communication information demodulated from the first carrier signal is cached in the storage module; The communication information is read from the storage module according to the preset transmission priority, and the communication information is modulated into a carrier signal of the second frequency to obtain the second carrier signal.

9. A carrier communication device, characterized in that, The apparatus is applied to a carrier communication system as described in any one of claims 1 to 6, the apparatus comprising: A receiving unit is configured to receive a first carrier signal from a first communication terminal via a sub-power line, wherein the first carrier signal is obtained by modulating communication information onto a carrier signal at a first frequency, the first frequency being the communication frequency of the sub-power line, and the first communication terminal being one of a master and a slave. A modulation unit is configured to modulate the communication information demodulated from the first carrier signal onto a carrier signal of a second frequency to obtain a second carrier signal, wherein the second frequency is the communication frequency of the main power line; A transmitting unit is configured to transmit the second carrier signal to a second communication terminal via the main power line, wherein the second communication terminal is another of the master and slave units.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the method as described in any one of claims 7 to 8.

11. An electronic device, characterized in that, include: One or more processors; A storage device for storing one or more programs, which, when executed by one or more processors, cause the one or more processors to implement the method as described in any one of claims 7 to 8.

Images