Power distribution network communication method and device, computer equipment, readable storage medium and program product

Abstract

The invention relates to a power distribution network communication method and device, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: acquiring a modulation carrier frequency configured for one-way communication of a power distribution network and on-off control information configured for an additional load; the one-way communication of the power distribution network refers to a communication process from a load end to a power supply end in the power distribution network; performing on-off control on the additional load according to the on-off control information, and determining a current signal of the load end; and modulating the current signal according to the modulation carrier frequency, obtaining and feeding back a modulation signal to the power supply end, so that the power supply end decodes the modulation signal according to the modulation carrier frequency, and restores the current signal of the load end. The method can improve the communication stability of the power distribution network.

Description

Technical Field

[0001] The present application relates to the field of electric power technology, and in particular to a distribution network communication method, device, computer equipment, computer-readable storage medium, and computer program product. Background Art

[0002] With the development of power technology, distribution network communication technology has emerged, which can use power lines as communication media to achieve information communication between the load end and the power supply end through information transmission between the two ends.

[0003] Traditional distribution network communication methods generally complete communication through voltage signals. Specifically, the voltage signal needs to be coupled to the power line to complete the information transmission between the load end and the power supply end. However, there is generally more than one load end in the distribution network. Each load end is connected in parallel in the distribution network. During the signal transmission process between one load end and the power supply end, the other load ends will also be affected by the voltage signal, resulting in unstable communication. Summary of the invention

[0004] Based on this, it is necessary to provide a distribution network communication method, device, computer equipment, computer-readable storage medium and computer program product that can improve communication stability in response to the above technical problems.

[0005] In a first aspect, the present application provides a distribution network communication method, comprising:

[0006] Acquire the modulation carrier frequency configured for the one-way communication of the distribution network and the on-off control information configured for the additional load; the one-way communication of the distribution network refers to the communication process from the load end to the power supply end in the distribution network;

[0007] Performing on-off control on the additional load according to the on-off control information to determine a current signal at the load end;

[0008] The current signal is modulated according to the modulation carrier frequency to obtain and feed back the modulation signal to the power supply end, so that the power supply end decodes the modulation signal according to the modulation carrier frequency to restore the current signal at the load end.

[0009] In one embodiment, performing on-off control on the additional load according to the on-off control information to determine the current signal at the load end includes:

[0010] Determining the connection control information and the disconnection control information in the connection control information, as well as the connection control timing of the connection control information and the disconnection control timing of the disconnection control information;

[0011] Based on the connection control timing and the disconnection control timing, the additional load is controlled on and off to determine the current signal at the load end.

[0012] In one embodiment, modulating the current signal according to the modulation carrier frequency to obtain and feed back the modulation signal to the power supply end includes:

[0013] Acquiring a digital signal at the load end during the on-off control process; the digital signal is used to represent the on-off state of the additional load;

[0014] The current signal is modulated according to the modulation carrier frequency and the digital signal to obtain a modulation signal which is fed back to the power supply end.

[0015] In one embodiment, the current signal is modulated according to the modulation carrier frequency and the digital signal to obtain and feed back the modulation signal to the power supply end, including:

[0016] Determining the on / off state represented by the digital signal;

[0017] When the on-off state is the connected state, the current signal is modulated according to the modulation carrier frequency to obtain and feed back a modulation signal to the power supply end; the additional load is connected in parallel with the load end in the connected state to change the current of the load end.

[0018] In one of the embodiments, the power distribution network communication method further includes:

[0019] When the on-off state is a disconnected state, the current signal is discarded.

[0020] In a second aspect, the present application further provides a power distribution network communication system, the system comprising: a load end, an additional load, and a power supply end connected to the load end;

[0021] The power supply end is used to decode the modulation signal according to the modulation carrier frequency to restore the current signal of the load end;

[0022] The additional load is connected in parallel with the load end in a connected state to change the current of the load end;

[0023] The load end is used to implement the method described in any one of the above embodiments.

[0024] In a third aspect, the present application further provides a power distribution network communication device, comprising:

[0025] A modulation carrier frequency acquisition module is used to acquire the modulation carrier frequency configured for the one-way communication of the distribution network and the on-off control information configured for the additional load; the one-way communication of the distribution network refers to the communication process from the load end to the power supply end in the distribution network;

[0026] An on-off control module, used to perform on-off control on the additional load according to the on-off control information, and determine the current signal at the load end;

[0027] The modulation signal determination module is used to modulate the current signal according to the modulation carrier frequency, obtain and feed back the modulation signal to the power supply end, so that the power supply end decodes the modulation signal according to the modulation carrier frequency and restores the current signal of the load end.

[0028] In a fourth aspect, the present application further provides a computer device, wherein the computer device comprises a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the steps of the above method are implemented.

[0029] In a fifth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, and the computer program implements the steps of the above method when executed by a processor.

[0030] In a sixth aspect, the present application further provides a computer program product, wherein the computer program product comprises a computer program, and when the computer program is executed by a processor, the steps of the above method are implemented.

[0031] The above-mentioned distribution network communication method, device, computer equipment, computer-readable storage medium and computer program product can obtain the modulation carrier frequency configured for the one-way communication of the distribution network and the on-off control information configured for the additional load, and can determine the communication signal required for communication, wherein the one-way communication of the distribution network refers to the communication process from the load end to the power supply end in the distribution network, the additional load is on-off controlled according to the on-off control information, the current signal at the load end is determined, the current signal is modulated according to the modulation carrier frequency, and the modulation signal is obtained and fed back to the power supply end, so that the power supply end decodes the modulation signal according to the modulation carrier frequency and restores the current signal at the load end, thereby completing a one-way communication process of the distribution network. When the above-mentioned method is used for distribution network communication, since the current signal is used for communication, even if the distribution network includes multiple load ends, the communication process between each load end and the power supply end does not interfere with each other, which can ensure the stability of the distribution network communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 An application environment diagram of a power distribution network communication method in an embodiment;

[0034] Figure 2 A schematic diagram of a flow chart of a power distribution network communication method in one embodiment;

[0035] Figure 3 is a schematic diagram of a modulation process in one embodiment;

[0036] Figure 4 A schematic diagram of a communication architecture of a power distribution network communication method in one embodiment;

[0037] Figure 5 A schematic diagram of code positions of a power distribution network communication method in one embodiment;

[0038] Figure 6 A pulse waveform schematic diagram of a power distribution network communication method in one embodiment;

[0039] Figure 7 A schematic diagram of a flow chart of a power distribution network communication method in another embodiment;

[0040] Figure 8 is a structural block diagram of a power distribution network communication device in one embodiment;

[0041] Fig. 9 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0043] The distribution network communication method provided in the embodiment of the present application can be applied to Figure 1In the application environment shown. The load end 102 communicates with the additional load 104 and the power supply end 106 connected to the load end 102 through the network. The load end 102 includes a controller and a load, and the load consumes electrical energy to work, for example, it can be an electrical device connected to a power supply. The additional load 104 is connected in parallel with the load end 102 in a connected state to change the current of the load end 102. The power supply end 106 is used to supply power to the load end 102 and the additional load 104, and is also used to decode the modulated signal according to the modulated carrier frequency to restore the current signal of the load end 102. The connection method between the load end 102 and the additional load 104 and the power supply end 106 can be a wired connection or a wireless connection. The wireless connection can be, for example, Bluetooth, WIFI, etc., which are not limited here. Specifically, the load end 102 and the power supply end 106 are both located in the distribution network. During the communication process between the load end 102 and the power supply end 106, the load end 102 obtains the modulation carrier frequency configured for the unidirectional communication of the distribution network and the on-off control information configured for the additional load 104; the unidirectional communication of the distribution network refers to the communication process from the load end 102 to the power supply end 106 in the distribution network; the on-off control of the additional load 104 is performed according to the on-off control information to determine the current signal of the load end 102; the current signal is modulated according to the modulation carrier frequency to obtain and feed back the modulation signal to the power supply end 106, so that the power supply end 106 decodes the modulation signal according to the modulation carrier frequency and restores the current signal of the load end 102.

[0044] In an exemplary embodiment, Figure 2 As shown, a distribution network communication method is provided, and the method is applied to Figure 1 The load end in the example is used to illustrate, including:

[0045] Step S202, obtaining the modulation carrier frequency configured for the unidirectional communication of the distribution network and the on-off control information configured for the additional load.

[0046] Among them, the distribution network is a part of the power system, which is responsible for safely and reliably distributing electric energy from the high-voltage transmission network to the end users. The main functions of the distribution network include: voltage conversion, power distribution, power control, power metering, fault detection and isolation, reactive power compensation, intelligent management, etc. The distribution network includes the load end and the power supply end. The one-way communication of the distribution network refers to the communication process from the load end to the power supply end in the distribution network. The modulated carrier frequency refers to the switching frequency of the additional load, which is the necessary data in the subsequent modulation and decoding process. The additional load refers to the load attached to the load end. In this embodiment, the change of the current signal is realized by turning on and off the additional load, thereby achieving the purpose of communication from the load end to the power supply end. The on-off control information refers to the control information of the load end on the connection control and disconnection control of the additional load.

[0047] Specifically, before the one-way communication of the distribution network is carried out, the corresponding modulation carrier frequency will be configured for the one-way communication of the distribution network based on this communication process. The load end will modulate the current signal based on the modulation carrier frequency, and the power supply end will also decode the modulation signal based on the modulation carrier frequency. Therefore, the load end needs to first obtain the modulation carrier frequency configured for the one-way communication of the distribution network and the on-off control information configured for the additional load, so as to determine the control signal for the additional load. For example, the on-off control information may be "connected for 0.8s, disconnected for 0.8s, connected for 0.8s". Furthermore, the process of the load end obtaining the modulation carrier frequency and on-off control information may be active acquisition or passive reception.

[0048] Step S204, performing on-off control on the additional load according to the on-off control information, and determining a current signal at the load end.

[0049] The load end includes a controller and a load. The load consumes electrical energy to work, and may be, for example, an electrical device connected to a power supply. The current signal refers to the current signal flowing through the load end. It is understood that the current signal at the load end will change during the on-off process of the attached load.

[0050] Specifically, the load end can change the current signal of the load end by controlling the on and off of the additional load, thereby generating a signal for communication with the power supply end. That is, the load end can perform on and off control on the additional load according to the acquired on and off control information to determine the current signal of the load end. For example, when the on and off control information is "connected for 0.8s, disconnected for 0.8s, connected for 0.8s", the load end can connect the additional load for 0.8s, then disconnect the additional load for 0.8s, and finally connect the additional load for 0.8s, and then determine the current signal of the load end during the on and off process. In a specific embodiment, the load end can determine the connection control information and the disconnection control information in the on and off control information, as well as the connection control timing of the connection control information and the disconnection control timing of the disconnection control information, and perform on and off control on the additional load based on the connection control timing and the disconnection control timing to determine the current signal of the load end. In another specific embodiment, an on and off control model can also be established, and the on and off control of the additional load is performed according to the acquired on and off control information through the on and off control model to determine the current signal of the load end.

[0051] Step S206, modulate the current signal according to the modulation carrier frequency, obtain and feed back the modulation signal to the power supply end, so that the power supply end decodes the modulation signal according to the modulation carrier frequency and restores the current signal at the load end.

[0052] The power supply end is used to supply power to the load end and the additional load, and is also used to decode the modulation signal according to the modulation carrier frequency to restore the current signal of the load end. The modulation signal refers to the signal obtained after the load end modulates the current signal according to the modulation carrier frequency.

[0053] Specifically, after determining the current signal at the load end, the current signal can be modulated according to the modulation carrier frequency to obtain the modulation signal, and the modulation signal is fed back to the power supply end. After the power supply end receives the modulation signal, it can decode the modulation signal according to the above modulation carrier frequency to restore the current signal at the load end, thereby realizing a one-way communication of the distribution network. In a specific embodiment, the load end can obtain the digital signal of the load end during the on-off control process, wherein the digital signal is used to represent the on-off state of the additional load, modulate the current signal according to the modulation carrier frequency and the digital signal, obtain and feed back the modulation signal to the power supply end. In another specific embodiment, the load end can also obtain the digital signal of the load end during the on-off control process, determine the on-off state represented by the digital signal, and when the on-off state is the connected state, modulate the current signal according to the modulation carrier frequency to obtain and feed back the modulation signal to the power supply end, wherein the additional load is connected in parallel with the load end in the connected state to change the current at the load end.

[0054] Exemplarily, the power supply end may use a sliding DFT (Discrete Fourier Transform) algorithm to decode the modulated signal according to the modulated carrier frequency.

[0055] In the above-mentioned distribution network communication method, the modulation carrier frequency configured for the unidirectional communication of the distribution network and the on-off control information configured for the additional load are obtained, and the communication signal required for the communication can be determined, wherein the unidirectional communication of the distribution network refers to the communication process from the load end to the power supply end in the distribution network, the additional load is on-off controlled according to the on-off control information, the current signal at the load end is determined, the current signal is modulated according to the modulation carrier frequency, and the modulation signal is obtained and fed back to the power supply end, so that the power supply end decodes the modulation signal according to the modulation carrier frequency and restores the current signal at the load end, thereby completing a unidirectional communication process of the distribution network. When the above-mentioned method is used for distribution network communication, since the current signal is used for communication, even if the distribution network includes multiple load ends, the communication process between each load end and the power supply end does not interfere with each other, which can ensure the stability of the distribution network communication.

[0056] In an exemplary embodiment, the on-off control of an additional load is performed according to the on-off control information to determine the current signal at the load end, including: determining the connection control information and the disconnection control information in the on-off control information, as well as the connection control timing of the connection control information and the disconnection control timing of the disconnection control information; based on the connection control timing and the disconnection control timing, the on-off control of the additional load is performed to determine the current signal at the load end.

[0057] The connection control information refers to the information for controlling the connection between the additional load and the load end, and the disconnection control information refers to the information for controlling the disconnection between the additional load and the load end. The connection control sequence refers to the control time and sequence of the connection control information, and the disconnection control sequence refers to the control time and sequence of the disconnection control information.

[0058] Specifically, the on-off control information includes connection control information and disconnection control information, and the number of connection control information and disconnection control information may be more than one. Therefore, in order to ensure the accuracy of on-off control, it is necessary to first determine the connection control information and disconnection control information in the on-off control information, as well as the connection control timing of the connection control information and the disconnection control timing of the disconnection control information, and then based on the connection control timing and the disconnection control timing, perform on-off control on the additional load and determine the current signal at the load end to ensure the accuracy of the connection control.

[0059] In an exemplary embodiment, the current signal is modulated according to the modulation carrier frequency to obtain and feed back the modulation signal to the power supply end, including: obtaining the digital signal at the load end during the on-off control process; modulating the current signal according to the modulation carrier frequency and the digital signal to obtain and feed back the modulation signal to the power supply end.

[0060] The digital signal is used to represent the on / off state of the additional load. For example, when the digital signal is "1", it can be ensured that the additional load is disconnected, and when the digital signal is "0", it can be ensured that the additional load is connected to the load end.

[0061] Specifically, during the on-off control process, the connectivity state between the additional load and the load end will change. Since different connectivity states between the additional load and the load end will affect the modulation process, a digital signal that can characterize the on-off state of the additional load can be obtained, and the current signal is modulated according to the modulation carrier frequency and the digital signal to obtain and feed back the modulation signal to the power supply end.

[0062] In this embodiment, by obtaining a digital signal that can represent the on / off state of the additional load, modulating the current signal according to the modulation carrier frequency and the digital signal, and obtaining and feeding back the modulated signal to the power supply end, the accuracy of signal modulation can be improved, thereby ensuring the accuracy of distribution network communication.

[0063] In an exemplary embodiment, the current signal is modulated according to the modulation carrier frequency and the digital signal to obtain and feed back the modulation signal to the power supply end, including: determining the on-off state represented by the digital signal; when the on-off state is the connected state, the current signal is modulated according to the modulation carrier frequency to obtain and feed back the modulation signal to the power supply end; and the additional load is connected in parallel with the load end in the connected state to change the current at the load end.

[0064] The connected state refers to a state in which the additional load is connected to the load end. In the connected state, the additional load is connected in parallel with the load end to change the current of the load end.

[0065] Specifically, during the communication process of the distribution network, only the current signal when the additional load is connected to the load end is modulated. Therefore, the on-off state represented by the digital signal can be determined first. When the on-off state is the connected state, the current signal is modulated according to the modulation carrier frequency to obtain and feed back the modulation signal to the power supply end.

[0066] In a specific embodiment, the current signal modulation can be implemented by OOK (On-Off Keying) modulation to modulate the carrier frequency. is the switching frequency of the additional load. The modulated signal after the current signal is modulated is :

[0067]

[0068] Among them, A represents the characteristic current amplitude, DUTY represents the duty cycle of the pulse signal, and the duty cycle is 1 / 3.

[0069] The modulation process is as follows Figure 3 As shown, the modulation carrier frequency is Each bit lasts 0.8s. If the bit is 1, the modulated carrier frequency is used during the bit duration. Modulate.

[0070] In this embodiment, when the on-off state is the connected state, the current signal is modulated according to the modulation carrier frequency to obtain and feed back the modulation signal to the power supply end, thereby ensuring the accuracy of the modulation signal generation.

[0071] In an exemplary embodiment, the power distribution network communication method further includes: when the on-off state is a disconnected state, discarding the current signal.

[0072] The disconnected state refers to a state where the additional load and the load are disconnected.

[0073] Specifically, when the on-off state is a disconnected state, the additional load and the load are in a disconnected state, and therefore, the current signal is not modulated.

[0074] In an exemplary embodiment, the additional load is a constant resistance load, and a load peak current of the constant resistance load is no greater than 0.8A.

[0075] In an exemplary embodiment, the modulated carrier frequency The range is 600Hz~900Hz, the signal duty cycle is 1 / 3, the presence or absence of current signal of the additional load represents the "1" and "0" of the digital signal, and the duration of each bit is 0.8s.

[0076] In an exemplary embodiment, the communication medium of the distribution network communication is a power line, which implements unidirectional communication from the load end to the power supply end based on the electrical connection structure.

[0077] In an exemplary embodiment, the power distribution network communication method can be implemented as follows: Figure 4 In the communication architecture diagram shown, ①②③④⑤⑥ are power supply nodes, and the power supply direction is a tree structure from ① to ②④⑥. ① acts as the power supply end to supply power to ⑤ and ⑥. ⑥ acts as the load end to initiate communication, and the communication path is ⑥⑤①. The load end ⑥ modulates the current signal by turning on and off the additional load to obtain the modulated signal. ⑤ and ① at the power supply end can receive and analyze the modulated signal, realizing one-way communication from ⑥ to ⑤ and ①. At this time, ②③④ cannot feel the current signal and are not affected.

[0078] Specifically, the load end can realize current signal modulation through OOK (On-Off Keying) modulation, modulating the carrier frequency is the switching frequency of the additional load. The modulated signal after the current signal is modulated is :

[0079]

[0080] Among them, A represents the characteristic current amplitude, DUTY represents the duty cycle of the pulse signal, and the duty cycle is 1 / 3.

[0081] The modulation process is as follows Figure 3 As shown, the modulation carrier frequency is Each bit lasts 0.8s. If the bit is 1, the modulated carrier frequency is used during the bit duration. Modulate.

[0082] The modulation example is implemented as Figure 5 , Figure 6 As shown, the modulated carrier frequency The range is 600Hz~900Hz, and the duration of each bit is 0.8s.

[0083] The power supply end can use the sliding DFT algorithm to extract the modulated carrier frequency The modulated signal is decoded and processed.

[0084] The sliding DFT algorithm extracts the modulated carrier frequency as follows: The frequency domain component calculation formula is:

[0085]

[0086]

[0087] in, They represent the modulation carrier frequencies respectively. The real part, imaginary part and modulus of the harmonics of , is the current phase angle, represents the number of data points in one cycle, To indicate the starting data point, Indicates the sampling point number, represents the sampling time interval, Indicates the current sampling value.

[0088] In a specific embodiment, Figure 7 As shown, a distribution network communication method is also provided, comprising:

[0089] Step S701, obtaining a modulation carrier frequency configured for unidirectional communication of the distribution network and on / off control information configured for an additional load;

[0090] Among them, one-way communication in the distribution network refers to the communication process from the load end to the power supply end in the distribution network;

[0091] Step S702, determining the connection control information and the disconnection control information in the connection control information, as well as the connection control timing of the connection control information and the disconnection control timing of the disconnection control information;

[0092] Step S703, based on the connection control timing sequence and the disconnection control timing sequence, the additional load is controlled to be on and off, and the current signal at the load end is determined;

[0093] Step S704, obtaining a digital signal at the load end during the on-off control process;

[0094] Wherein, the digital signal is used to represent the on / off state of the additional load;

[0095] Step S705, determining the on / off state represented by the digital signal;

[0096] Step S706, when the on-off state is the on state, modulate the current signal according to the modulation carrier frequency, obtain and feed back the modulation signal to the power supply end, so that the power supply end decodes the modulation signal according to the modulation carrier frequency and restores the current signal at the load end;

[0097] Step S707: when the on-off state is a disconnected state, discard the current signal.

[0098] The additional load is connected in parallel with the load end in the connected state to change the current at the load end.

[0099] In an exemplary embodiment, a distribution network communication system is also provided, the system comprising: a load end, an additional load, and a power supply end connected to the load end; the power supply end is used to decode the modulated signal according to the modulated carrier frequency and restore the current signal of the load end; the additional load is connected in parallel with the load end in a connected state to change the current of the load end; the load end is used to implement any one of the methods in the above embodiments.

[0100] In the above-mentioned distribution network communication system, the load end obtains the modulation carrier frequency configured for the one-way communication of the distribution network and the on-off control information configured for the additional load, and can determine the communication signal required for communication, wherein the one-way communication of the distribution network refers to the communication process from the load end to the power supply end in the distribution network, the additional load is on-off controlled according to the on-off control information, the current signal of the load end is determined, the current signal is modulated according to the modulation carrier frequency, and the modulation signal is obtained and fed back to the power supply end, so that the power supply end decodes the modulation signal according to the modulation carrier frequency and restores the current signal of the load end, thereby completing a one-way communication process of the distribution network, and the additional load is connected in parallel with the load end in the connected state to change the current of the load end. The above-mentioned method is used for distribution network communication, because the current signal is used for communication, even if the distribution network includes multiple load ends, the communication process between each load end and the power supply end does not interfere with each other, which can ensure the stability of the distribution network communication.

[0101] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0102] Based on the same inventive concept, the embodiment of the present application also provides a distribution network communication device for implementing the distribution network communication method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more distribution network communication device embodiments provided below can refer to the limitations on the distribution network communication method above, and will not be repeated here.

[0103] In an exemplary embodiment, Figure 8As shown, a distribution network communication device 800 is provided, including: a modulation carrier frequency acquisition module 802, an on-off control module 804 and a modulation signal determination module 806, wherein:

[0104] The modulation carrier frequency acquisition module 802 is used to obtain the modulation carrier frequency configured for the one-way communication of the distribution network and the on-off control information configured for the additional load; the one-way communication of the distribution network refers to the communication process from the load end to the power supply end in the distribution network;

[0105] The on-off control module 804 is used to perform on-off control on the additional load according to the on-off control information and determine the current signal at the load end;

[0106] The modulation signal determination module 806 is used to modulate the current signal according to the modulation carrier frequency, obtain and feed back the modulation signal to the power supply end, so that the power supply end decodes the modulation signal according to the modulation carrier frequency and restores the current signal at the load end.

[0107] In one embodiment, the on-off control module 804 is specifically used to: determine the connection control information and the disconnection control information in the on-off control information, as well as the connection control timing of the connection control information and the disconnection control timing of the disconnection control information; based on the connection control timing and the disconnection control timing, perform on-off control on the additional load to determine the current signal at the load end.

[0108] In one embodiment, the modulation signal determination module 806 includes: a digital signal acquisition unit, used to acquire the digital signal at the load end during the on-off control process; the digital signal is used to characterize the on-off state of the additional load; a modulation unit, used to modulate the current signal according to the modulation carrier frequency and the digital signal, and obtain and feed back the modulation signal to the power supply end.

[0109] In one embodiment, the modulation unit is specifically used to: determine the on-off state represented by the digital signal; when the on-off state is the connected state, modulate the current signal according to the modulation carrier frequency to obtain and feed back the modulation signal to the power supply end; and connect the additional load in parallel with the load end in the connected state to change the current at the load end.

[0110] In one embodiment, the power distribution network communication device 800 further includes a signal discarding module, which is specifically configured to discard the current signal when the on / off state is a disconnected state.

[0111] Each module in the above-mentioned power distribution network communication device can be implemented in whole or in part by software, hardware and a combination thereof. Each of the above-mentioned modules can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute operations corresponding to each of the above modules.

[0112] In an exemplary embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as shown in FIG. Fig. 9 As shown. The computer device includes a processor, a memory, an input / output interface, a communication interface, a display unit and an input device. The processor, the memory and the input / output interface are connected through a system bus, and the communication interface, the display unit and the input device are connected to the system bus through the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and the external device. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be implemented through WIFI, a mobile cellular network, near field communication (NFC) or other technologies. When the computer program is executed by the processor, a distribution network communication method is implemented. The display unit of the computer device is used to form a visually visible picture, which can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad set on the computer device shell, or an external keyboard, touchpad or mouse.

[0113] Those skilled in the art will understand that Fig. 9 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0114] In one embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps of the above method when executing the computer program.

[0115] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the above method are implemented.

[0116] In one embodiment, a computer program product is provided, comprising a computer program, which implements the steps of the above method when executed by a processor.

[0117] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0118] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, an artificial intelligence (AI) processor, etc., but are not limited to this.

[0119] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0120] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A distribution network communication method, characterized in that: The method comprises: Acquire the modulation carrier frequency configured for the one-way communication of the distribution network and the on-off control information configured for the additional load; the one-way communication of the distribution network refers to the communication process from the load end to the power supply end in the distribution network; Performing on-off control on the additional load according to the on-off control information to determine a current signal at the load end; The current signal is modulated according to the modulation carrier frequency to obtain and feed back the modulation signal to the power supply end, so that the power supply end decodes the modulation signal according to the modulation carrier frequency to restore the current signal at the load end.

2. The method according to claim 1, characterized in that The step of controlling the on / off of the additional load according to the on / off control information to determine the current signal at the load end includes: Determining the connection control information and the disconnection control information in the connection control information, as well as the connection control timing of the connection control information and the disconnection control timing of the disconnection control information; Based on the connection control timing and the disconnection control timing, the additional load is controlled on and off to determine the current signal at the load end.

3. The method according to claim 1, characterized in that: The step of modulating the current signal according to the modulation carrier frequency to obtain and feed back the modulation signal to the power supply end comprises: Acquiring a digital signal at the load end during the on-off control process; the digital signal is used to represent the on-off state of the additional load; The current signal is modulated according to the modulation carrier frequency and the digital signal to obtain a modulation signal which is fed back to the power supply end.

4. The method according to claim 3, characterized in that The step of modulating the current signal according to the modulation carrier frequency and the digital signal to obtain and feed back the modulation signal to the power supply end comprises: Determining the on / off state represented by the digital signal; When the on-off state is the connected state, the current signal is modulated according to the modulation carrier frequency to obtain and feed back a modulation signal to the power supply end; the additional load is connected in parallel with the load end in the connected state to change the current of the load end.

5. The method according to claim 3, characterized in that: The method further comprises: When the on-off state is a disconnected state, the current signal is discarded.

6. A distribution network communication system, characterized in that: The system comprises: a load end, an additional load, and a power supply end connected to the load end; The power supply end is used to decode the modulation signal according to the modulation carrier frequency to restore the current signal of the load end; The additional load is connected in parallel with the load end in a connected state to change the current of the load end; The load end is used to implement the method according to any one of claims 1 to 5.

7. A distribution network communication device, characterized in that: The device comprises: A modulation carrier frequency acquisition module is used to acquire the modulation carrier frequency configured for the one-way communication of the distribution network and the on-off control information configured for the additional load; the one-way communication of the distribution network refers to the communication process from the load end to the power supply end in the distribution network; An on-off control module, used to perform on-off control on the additional load according to the on-off control information, and determine the current signal at the load end; The modulation signal determination module is used to modulate the current signal according to the modulation carrier frequency, obtain and feed back the modulation signal to the power supply end, so that the power supply end decodes the modulation signal according to the modulation carrier frequency and restores the current signal of the load end.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 5 are implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 5 are implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 5 are implemented.

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