Network equipment networking communication method and device

Abstract

The invention discloses a power grid equipment networking communication method and device, and the method comprises the steps: carrying out the real-time cell search based on a preset first frequency band, obtaining first cell information, and determining a real-time network state based on the first cell information; and if the real-time network state is normal, accessing a cellular wireless network based on the first cell information, receiving relay request information based on a preset second frequency band, and establishing relay transmission connection based on the relay request information, performing networking communication with the cellular wireless network based on the relay transmission channel of the relay transmission connection; if the real-time network state is abnormal, establishing a relay transmission connection with the networked device based on the second frequency band, and performing networking communication based on a relay transmission channel of the relay transmission connection; the connected equipment is power grid equipment with a normal real-time network state.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution network, and in particular to a power grid equipment networking communication method and device. Background Art

[0002] The complex and changeable grid structure and information islands of the distribution network have restricted the improvement of the distribution network's controllable capabilities, affecting the reliability of power supply, power quality, and economic efficiency of operation. The trend of smart distribution networks towards power electronics is obvious, the complexity of electrical quantities is increasing, and single measurement information is insufficient, which makes the communication problems faced by power distribution systems more serious. To solve this problem, the current common technology is to transmit the data information collected by each distribution system device to a central server via wired or wireless means. The central server will uniformly process the collected data, calculate and decide the next action of each power grid device, and issue corresponding instructions to the power grid equipment.

[0003] The existing power grid equipment networking communication method, due to the different geographical locations of power grid equipment and different wireless network environments, some devices cannot connect to the central server due to the wireless environment, resulting in poor distribution network networking communication quality. Summary of the invention

[0004] The present invention provides a network communication method and device for power grid equipment to improve the communication quality of distribution network networking.

[0005] In order to solve the above technical problems, an embodiment of the present invention provides a network communication method for power grid equipment, including:

[0006] Performing a real-time cell search based on a preset first frequency band to obtain first cell information, and determining a real-time network status based on the first cell information;

[0007] If the real-time network status is normal, accessing the cellular wireless network based on the first cell information, receiving relay request information based on a preset second frequency band, establishing a relay transmission connection based on the relay request information, and performing networking communication with the cellular wireless network based on the relay transmission channel of the relay transmission connection;

[0008] If the real-time network status is abnormal, a relay transmission connection is established with the networked device based on the second frequency band, and networking communication is performed based on the relay transmission channel of the relay transmission connection; the networked device is a power grid device whose real-time network status is normal.

[0009] The present invention obtains the first cell information by performing a real-time cell search based on a preset first frequency band. Then, it is determined whether the network status of the current device is normal based on the first cell information, thereby obtaining the changes in the real-time network environment of the device, and adjusting the networking communication strategy based on the real-time network status of the device. When it is detected that the real-time network status is normal, the device will directly access the cellular wireless network through the first cell information, and use this cellular wireless network for networking communication to achieve rapid communication of normal power grid devices; if the real-time network status is abnormal, it indicates that the direct access of the power grid device to the cellular network may result in poor communication quality. In this case, the device will establish a relay transmission connection with the device (network-connected device) that has successfully accessed the network based on the second frequency band. Through this relay channel, the current power grid device can communicate with the network, ensuring that data can be transmitted even when the network status of the current device is not good.

[0010] Further, performing a real-time cell search based on a preset first frequency band to obtain first cell information, and determining a real-time network state based on the first cell information includes:

[0011] Performing a real-time cell search based on a preset first frequency band to obtain first cell information, and obtaining a wireless signal strength and a wireless signal quality based on the first cell information;

[0012] If the wireless signal strength is greater than a preset first signal strength threshold, and the wireless signal quality is greater than a preset first signal quality threshold, then the real-time network status of the current device is normal;

[0013] If not, the real-time network status of the current device is abnormal.

[0014] The present invention performs a cell search within a preset frequency band range to obtain the currently available first cell information, thereby extracting the wireless signal strength and the wireless signal quality based on the first cell information. By judging the current network status of the power grid equipment and performing cell searches and signal quality assessments regularly, the power grid equipment can monitor the current network status in real time to ensure timely discovery and handling of network problems.

[0015] Furthermore, the second frequency band is mutually exclusive with the first frequency band; and the step of establishing a relay transmission connection based on the preset second frequency band includes:

[0016] Relay request information is received based on a preset second frequency band, and when the wireless signal strength is greater than a preset second signal strength threshold and the wireless signal quality is greater than a preset second signal quality threshold, a relay transmission connection is established based on the relay request information.

[0017] The mutual exclusion of the second frequency band and the first frequency band in the present invention indicates that the first frequency band and the second frequency band are different frequency band ranges, and a device can only use one of the frequency bands for communication at a certain moment, thereby ensuring that the second frequency band and the first frequency band are not used at the same time, thereby avoiding frequency band conflicts and interference; the power grid equipment establishes a relay transmission connection through the second frequency band, thereby monitoring and receiving relay request information of other power grid equipment on the second frequency band, and establishing a relay transmission connection based on the relay request information when the signal quality and strength requirements are met, ensuring the continuity of communication, and then using the current power grid equipment as a relay node to help other devices communicate on the second frequency band, and realizing data transmission between other power grid equipment through forwarding by the relay node.

[0018] Furthermore, the networking communication based on the transmission channel of the cellular wireless network and the intermediate transmission connection includes:

[0019] The first service data is acquired based on the relay transmission channel, and the first service data is forwarded based on the cellular wireless network.

[0020] The present invention obtains the first business data through a relay transmission channel. Since the first business data is the business data of other power grid devices, the current power grid device acts as a relay node and utilizes the high coverage and reliability of the cellular wireless network to forward the business data obtained through the relay transmission channel to the target device or core network, thereby helping other power grid devices to forward the business data and realize efficient networking communication of power grid devices in the distribution network.

[0021] Furthermore, the relay transmission channel based on the relay transmission connection and the cellular wireless network perform networking communication, including:

[0022] Acquire second service data based on the cellular wireless network, and acquire a target device ID based on the second service data;

[0023] If the target device ID is the current power grid device, the second service data is parsed and processed;

[0024] If the target device ID is not the current power grid device, the second service data is forwarded based on the relay transmission channel and the target device ID.

[0025] The present invention obtains the second service data sent by the server through the cellular wireless network, identifies the target device ID according to the second service data, determines the data transmission address according to the target device ID, and thus decides whether to process the data directly or forward it through a relay transmission channel, thereby ensuring that the data can reach the target device accurately and efficiently.

[0026] Further, the performing networking communication based on the relay transmission channel of the relay transmission connection includes:

[0027] Packing the service data of the current power grid equipment to generate third service data, and forwarding the third service data based on the relay transmission channel;

[0028] Acquire fourth service data based on the relay transmission channel, and parse and process the fourth service data.

[0029] When the network status is abnormal, the present invention establishes an intermediate transmission connection with the networked device, thereby obtaining the business data sent by the server through the relay transmission channel, and forwarding the business data of the current power grid equipment through the relay transmission channel, so that the data can be transmitted even when the network status of the current device is not good.

[0030] In a second aspect, the present invention provides a network communication device for power grid equipment, comprising: a state judgment module and a communication module;

[0031] The state judgment module is used to perform a real-time cell search based on a preset first frequency band to obtain first cell information, and determine a real-time network state based on the first cell information;

[0032] The communication module is configured to, if the real-time network status is normal, access the cellular wireless network based on the first cell information, establish a relay transmission connection based on a preset second frequency band, and perform networking communication based on the transmission channel of the cellular wireless network and the intermediate transmission connection;

[0033] The communication module is used to establish a relay transmission connection with the connected device based on the second frequency band if the real-time network status is abnormal, and to perform networking communication based on the relay transmission channel of the relay transmission connection; the connected device is a power grid device whose real-time network status is normal.

[0034] Furthermore, the second frequency band is mutually exclusive with the first frequency band, and the communication module includes a first communication module and a second communication module; when the real-time network status is normal, the second communication module is used to:

[0035] Relay request information is received based on a preset second frequency band, and when the wireless signal strength is greater than a preset second signal strength threshold and the wireless signal quality is greater than a preset second signal quality threshold, a relay transmission connection is established based on the relay request information.

[0036] Further, when the real-time network status is normal, the first communication module is used to:

[0037] Acquire second service data based on the cellular wireless network, and acquire a target device ID based on the second service data;

[0038] If the target device ID is the current power grid device, the second service data is parsed and processed;

[0039] If the target device ID is not the current power grid device, the second service data is forwarded based on the relay transmission channel and the target device ID.

[0040] Further, when the real-time network status is abnormal, the second communication module is used to:

[0041] Packing the service data of the current power grid equipment to generate third service data, and forwarding the third service data based on the relay transmission channel;

[0042] Acquire fourth service data based on the relay transmission channel, and parse and process the fourth service data. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A schematic diagram of a flow chart of a method for networking and communicating power grid equipment provided in an embodiment of the present invention;

[0044] Figure 2 A schematic diagram of the structure of a power grid device provided by an embodiment of the present invention;

[0045] Figure 3 Another flowchart of a method for networking and communicating power grid equipment provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0046] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0047] The terms "first" and "second" and the like in the specification, claims and drawings of this application are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0048] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0049] Example 1

[0050] See also Figure 1 , Figure 1 The present invention provides a method for network communication of power grid equipment, including steps 101 to 103, which are as follows:

[0051] Step 101: performing a real-time cell search based on a preset first frequency band to obtain first cell information, and determining a real-time network status based on the first cell information;

[0052] In this embodiment, performing a real-time cell search based on a preset first frequency band to obtain first cell information, and determining a real-time network state based on the first cell information includes:

[0053] Performing a real-time cell search based on a preset first frequency band to obtain first cell information, and obtaining a wireless signal strength and a wireless signal quality based on the first cell information;

[0054] If the wireless signal strength is greater than a preset first signal strength threshold, and the wireless signal quality is greater than a preset first signal quality threshold, then the real-time network status of the current device is normal;

[0055] If not, the real-time network status of the current device is abnormal.

[0056] In this embodiment, a cell search is performed within a preset frequency band range to obtain the currently available first cell information, thereby extracting the wireless signal strength and the wireless signal quality based on the first cell information. Since the network status of the current power grid equipment is judged, the power grid equipment can monitor the current network status in real time by regularly performing cell searches and signal quality assessments, thereby ensuring that network problems are discovered and handled in a timely manner.

[0057] In this embodiment, a first frequency band is preset, and the first frequency band is a default communication frequency band range of the power grid equipment, which can be used to search for available network cells.

[0058] In this embodiment, a cell search is performed periodically or on demand to obtain all cell information available to the current device, including the cell ID, frequency, signal strength, etc. of each network cell. And based on the cell information obtained by the search, an available cell with a wireless signal strength greater than a preset first signal strength threshold and a wireless signal quality greater than a preset first signal quality threshold is selected. If there is an available cell, the real-time network status of the current power grid device is normal. If there is no available cell, the real-time network status of the device is abnormal.

[0059] In this embodiment, the cellular wireless network is searched according to a preset first frequency point or first frequency band list, and then the SIB1 (System Information Block Type 1) of each network cell is obtained, and then it is determined whether the wireless signal strength RSRP and the wireless signal quality RSRQ of each network cell are greater than or equal to the given threshold in SIB1 plus the signal enhancement self-set offset. The self-set offset is generally greater than 0, so as to ensure that the power grid equipment communication module can obtain better cellular wireless network resources.

[0060] In this embodiment, the wireless signal strength is usually represented by the received signal strength indication (RSSI) or the reference signal received power (RSRP), which reflects the strength of the signal. The wireless signal quality is usually represented by the reference signal received quality (RSRQ) or the signal-to-noise ratio (SNR), which reflects the purity and interference of the signal.

[0061] In this embodiment, SIB1 contains the basic information required by the power grid equipment when accessing the network, which specifically includes cell access related parameters, such as the PLMN (Public Land Mobile Network) list, which lists the identifiers of the public land mobile network to which the cell belongs, including the name and country code of the network operator. The terminal device uses this information to select the appropriate network. Cell Identity, that is, information that uniquely identifies the current cell, helps the terminal device identify the cell it is in. Cell selection and reselection parameters, that is, reselection strategies used to guide terminal devices on how to select a suitable cell for residence and movement.

[0062] In this embodiment, by regularly performing cell searches and signal quality assessments, the device can monitor the current network status in real time to ensure timely discovery and handling of network problems. If the network status is abnormal, the device can automatically switch to other communication methods (such as relay transmission) to ensure the continuity and reliability of communication. Furthermore, by setting reasonable signal strength and quality thresholds, invalid communication attempts can be effectively avoided when the network environment is poor, thereby improving overall network performance.

[0063] Step 102: if the real-time network status is normal, accessing a cellular wireless network based on the first cell information, establishing a relay transmission connection based on a preset second frequency band, and performing networking communication based on a transmission channel of the cellular wireless network and the intermediate transmission connection;

[0064] In this embodiment, the second frequency band is mutually exclusive with the first frequency band; and establishing a relay transmission connection based on the preset second frequency band includes:

[0065] Relay request information is received based on a preset second frequency band, and when the wireless signal strength is greater than a preset second signal strength threshold and the wireless signal quality is greater than a preset second signal quality threshold, a relay transmission connection is established based on the relay request information.

[0066] In this embodiment, the first frequency band and the second frequency band are different frequency band ranges, and the device can only use one of the frequency bands for communication at a certain time. The use of different frequency bands can reduce signal interference and improve communication quality.

[0067] In this embodiment, the device listens to and receives relay request information from other devices on the second frequency band and makes a secondary judgment on the wireless signal quality and wireless signal strength of the current device, thereby determining whether to establish relay transmission with other devices. Based on a good wireless communication network, it is ensured that even after establishing a relay transmission connection with other devices, the communication quality of the current device itself will not be affected.

[0068] In this embodiment, if the relay request information is received, and the cell wireless signal strength of the current device is greater than the second signal strength threshold, and the wireless signal quality is greater than the second signal quality threshold, it is considered that the current device can establish a relay transmission connection on the second frequency band.

[0069] In this embodiment, the current device acts as a relay node to help other devices communicate on the second frequency band, and data transmission between remote devices is realized through forwarding by the relay node, so that other network devices can communicate with the current device as a relay point.

[0070] In this embodiment, before establishing the relay transmission connection based on the relay request information, it is necessary to determine whether to establish the relay transmission connection in combination with the current uplink and downlink data transmission volume of the power grid device.

[0071] In this embodiment, if the percentage of the current uplink and downlink data transmission speeds of the power grid device to the cell bandwidth corresponding to the cell capacity accessed by the first communication module is less than a certain threshold, and the threshold is lower than 100%, a relay transmission connection is established.

[0072] The mutual exclusion of the second frequency band and the first frequency band in the present invention indicates that the first frequency band and the second frequency band are different frequency band ranges, and a device can only use one of the frequency bands for communication at a certain moment, thereby ensuring that the second frequency band and the first frequency band are not used at the same time, thereby avoiding frequency band conflicts and interference; the power grid equipment establishes a relay transmission connection through the second frequency band, thereby monitoring and receiving relay request information of other power grid equipment on the second frequency band, and establishing a relay transmission connection based on the relay request information when the signal quality and strength requirements are met, ensuring the continuity of communication, and then using the current power grid equipment as a relay node to help other devices communicate on the second frequency band, and realizing data transmission between other power grid equipment through forwarding by the relay node.

[0073] In this embodiment, the networking communication based on the transmission channel of the cellular wireless network and the intermediate transmission connection includes:

[0074] The first service data is acquired based on the relay transmission channel, and the first service data is forwarded based on the cellular wireless network.

[0075] In this embodiment, when communication in the first frequency band is unavailable, the device transmits data through a relay transmission connection established in the second frequency band. The relay node acts as an intermediary to help the source device forward the service data to the target device. The first service data may include control instructions, sensor data, status information, etc. The current power grid equipment utilizes the high coverage and reliability of the cellular wireless network to forward the service data obtained by the relay transmission channel to the target device or the core network, thereby ensuring that even when the network is poor, the service data can be efficiently and reliably transmitted in a complex network environment.

[0076] The present invention obtains the first business data through a relay transmission channel. Since the first business data is the business data of other power grid devices, the current power grid device acts as a relay node and utilizes the high coverage and reliability of the cellular wireless network to forward the business data obtained through the relay transmission channel to the target device or core network, thereby helping other power grid devices to forward the business data and realize efficient networking communication of power grid devices in the distribution network.

[0077] In this embodiment, the relay transmission channel based on the relay transmission connection and the cellular wireless network perform networking communication, including:

[0078] Acquire second service data based on the cellular wireless network, and acquire a target device ID based on the second service data;

[0079] If the target device ID is the current power grid device, the second service data is parsed and processed;

[0080] If the target device ID is not the current power grid device, the second service data is forwarded based on the relay transmission channel and the target device ID.

[0081] In this embodiment, when the network is normal, a data packet sent by a server or other device is received based on a cellular wireless network, and the target device ID of the data packet is parsed. The destination address of the data packet is determined based on the target device ID. If the destination address is the current power grid device, the data packet is parsed and processed. If it is other devices, the data packet is forwarded through a relay transmission channel.

[0082] The present invention obtains the second service data sent by the server through the cellular wireless network, identifies the target device ID according to the second service data, determines the data transmission address according to the target device ID, and thus decides whether to process the data directly or forward it through a relay transmission channel, thereby ensuring that the data can reach the target device accurately and efficiently.

[0083] Step 103: If the real-time network status is abnormal, a relay transmission connection is established with a networked device based on the second frequency band, and networking communication is performed based on a relay transmission channel of the relay transmission connection; the networked device is a power grid device whose real-time network status is normal.

[0084] In this embodiment, the networking communication based on the relay transmission channel of the relay transmission connection includes:

[0085] Packing the service data of the current power grid equipment to generate third service data, and forwarding the third service data based on the relay transmission channel;

[0086] Acquire fourth service data based on the relay transmission channel, and parse and process the fourth service data.

[0087] In this embodiment, when the network status of the power grid device is abnormal, relay request information is sent based on the second frequency band, and a relay connection is established with the connected power grid device according to the relay request information, thereby performing networking communication based on the relay transmission channel of the relay transmission connection.

[0088] In this embodiment, when data needs to be sent, the business data (such as sensor data, status information, control instructions, etc.) generated by the current power grid equipment is packaged to form a complete data packet to generate third business data: the packaged data packet is the third business data, which may include data content, target device ID, source device ID and other information. When communication in the first frequency band is unavailable, the device transmits data through the relay transmission connection established in the second frequency band. The relay node acts as an intermediate medium to help the source device forward the business data to the target device. The third business data is sent to the target device through the relay transmission channel to ensure that the data can reach the destination accurately and in a timely manner.

[0089] In this embodiment, the current device receives business data from other devices through a relay transmission channel, extracts specific instructions or information from the fourth business data, including the target device ID, source device ID, and data content, and performs corresponding operations based on the parsed instructions or information, such as updating status, executing control instructions, recording data, etc.

[0090] When the network status is abnormal, the present invention establishes an intermediate transmission connection with the networked device, thereby obtaining the business data sent by the server through the relay transmission channel, and forwarding the business data of the current power grid equipment through the relay transmission channel, so that the data can be transmitted even when the network status of the current device is not good.

[0091] The embodiment of the present invention further provides a network communication device for power grid equipment, comprising: a state judgment module and a communication module;

[0092] The state judgment module is used to perform a real-time cell search based on a preset first frequency band to obtain first cell information, and determine a real-time network state based on the first cell information;

[0093] The communication module is configured to, if the real-time network status is normal, access the cellular wireless network based on the first cell information, establish a relay transmission connection based on a preset second frequency band, and perform networking communication based on the transmission channel of the cellular wireless network and the intermediate transmission connection;

[0094] The communication module is used to establish a relay transmission connection with the connected device based on the second frequency band if the real-time network status is abnormal, and to perform networking communication based on the relay transmission channel of the relay transmission connection; the connected device is a power grid device whose real-time network status is normal.

[0095] In this embodiment, the second frequency band is mutually exclusive with the first frequency band, and the communication module includes a first communication module and a second communication module; when the real-time network status is normal, the second communication module is used to:

[0096] Relay request information is received based on a preset second frequency band, and when the wireless signal strength is greater than a preset second signal strength threshold and the wireless signal quality is greater than a preset second signal quality threshold, a relay transmission connection is established based on the relay request information.

[0097] In this embodiment, when the real-time network status is normal, the first communication module is used to:

[0098] Acquire second service data based on the cellular wireless network, and acquire a target device ID based on the second service data;

[0099] If the target device ID is the current power grid device, the second service data is parsed and processed;

[0100] If the target device ID is not the current power grid device, the second service data is forwarded based on the relay transmission channel and the target device ID.

[0101] In this embodiment, when the real-time network status is abnormal, the second communication module is used to:

[0102] Packing the service data of the current power grid equipment to generate third service data, and forwarding the third service data based on the relay transmission channel;

[0103] Acquire fourth service data based on the relay transmission channel, and parse and process the fourth service data.

[0104] In this embodiment, the state determination module is used to:

[0105] Performing a real-time cell search based on a preset first frequency band to obtain first cell information, and obtaining a wireless signal strength and a wireless signal quality based on the first cell information;

[0106] If the wireless signal strength is greater than a preset first signal strength threshold, and the wireless signal quality is greater than a preset first signal quality threshold, then the real-time network status of the current device is normal;

[0107] If not, the real-time network status of the current device is abnormal.

[0108] Please refer to Figure 2 , Figure 2 A schematic diagram of a structure of a power grid device provided by an embodiment of the present invention. The present invention provides a power grid device for implementing the above-mentioned power grid device networking communication method, which includes a network decision module 201 , a first communication module 202 and a second communication module 203 .

[0109] Please refer to Figure 3 , Figure 3 Another flowchart of a method for networking and communicating power grid equipment provided by an embodiment of the present invention.

[0110] In this embodiment, the first communication module searches for the cellular wireless network according to a preset frequency point or frequency band list, obtains the SIB1 of each network cell, and determines whether the first condition is met, that is, whether the current cell wireless signal strength RSRP and wireless signal quality RSRQ are both greater than or equal to the given threshold in SIB1 plus the signal enhancement self-set offset, which is generally greater than 0, to ensure that the power grid equipment communication module can obtain better cellular wireless network resources.

[0111] In this embodiment, if the signal strength and quality of the cellular wireless network meet the first condition and the network status is normal, the power grid device is the power grid device 1, and the first communication module of the power grid device 1 reports the cellular wireless network available message to the network decision module, and the first network decision module instructs the first communication module to access the cellular wireless network, and at the same time instructs the second communication module to start receiving signals on the second frequency band. The second frequency band here is completely different from the preset frequency point or frequency band in the first communication module to prevent interference between networks.

[0112] In this embodiment, if the signal strength and quality of the cellular wireless network obtained by the first communication module of a power grid device do not meet the first condition, the current power grid device network is abnormal, and the first communication module reports the cellular wireless network unavailable message to the network decision module. The network decision module instructs the second communication module to send a relay transmission request message carrying the power grid equipment ID on the second frequency band, and simultaneously starts signal reception on the frequency band.

[0113] In this embodiment, when the network status is normal, if a relay transmission request message of the second frequency band is received, the message is forwarded to the network decision module, and the network decision module obtains the signal strength and signal quality of the first communication module (that is, RSRP and / or RSRQ is greater than or equal to a preset threshold value), and combines the current uplink and downlink data transmission volume of the power grid equipment (that is, the percentage of the uplink and downlink data transmission speeds of the current power grid equipment to the cell bandwidth corresponding to the cell capacity accessed by the first communication module is less than a threshold value, and the threshold value is lower than 100%) to decide whether to accept the relay transmission request message of the second frequency band. If accepted, a relay transmission confirmation message is sent on the second frequency band.

[0114] In this embodiment, when the network status is abnormal, the second communication module of the power grid device receives the relay transmission confirmation message of the connected power grid device, further establishes a relay transmission connection with the connected power grid device, and reports the relay transmission channel available message to the network decision module. The network decision module sends the monitoring data of this device through the second communication module, and receives the action instructions of the central server through the second communication module.

[0115] In this embodiment, the network decision module of the power grid equipment with normal network status forwards the data received on the second communication module to the central server through the first communication module, and analyzes the data packet on the first communication module to determine whether it belongs to the current power grid equipment or other power grid equipment. If it is data of other power grid equipment, it is forwarded to the power grid equipment through the second communication module.

[0116] In an embodiment of the present invention, a terminal device is also provided, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, and the processor implements the above-mentioned power grid device networking communication method when executing the computer program.

[0117] In an embodiment of the present invention, a computer-readable storage medium is further provided. The computer-readable storage medium includes a stored computer program. When the computer program is executed, the device where the computer-readable storage medium is located is controlled to execute the above-mentioned power grid device networking communication method.

[0118] Exemplarily, the computer program may be divided into one or more modules, one or more modules are stored in a memory and executed by a processor to implement the present invention. One or more modules may be a series of computer program instruction segments capable of implementing specific functions, and the instruction segments are used to describe the execution process of the computer program in the power grid device.

[0119] The power grid device may be a computing device such as a desktop computer, a notebook, a PDA, and a cloud server. The power grid device may include, but is not limited to, a processor, a memory, and a display. Those skilled in the art will appreciate that the above components are merely examples of power grid devices and do not constitute a limitation on the power grid device. The power grid device may include more or fewer components than the components, or may combine certain components, or different components. For example, the power grid device may also include input and output devices, network access devices, buses, and the like.

[0120] The processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc. The processor is the control center of the power grid equipment, and uses various interfaces and lines to connect various parts of the entire power grid equipment.

[0121] The memory can be used to store computer programs and / or modules. The processor realizes various functions of the power grid equipment by running or executing the computer programs and / or modules stored in the memory and calling the data stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, a text conversion function, etc.), etc.; the data storage area can store data created according to the use of the mobile phone (such as audio data, text message data, etc.), etc. In addition, the memory can include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0122] Among them, if the module based on the networking communication of power grid equipment is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the present invention implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by the processor, the steps of the above-mentioned various method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium, etc. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0123] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. It is particularly pointed out that for those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for network communication of power grid equipment, characterized in that: include: Performing a real-time cell search based on a preset first frequency band to obtain first cell information, and determining a real-time network status based on the first cell information; If the real-time network status is normal, accessing the cellular wireless network based on the first cell information, establishing a relay transmission connection based on a preset second frequency band, and performing networking communication based on the transmission channel of the cellular wireless network and the intermediate transmission connection; If the real-time network status is abnormal, a relay transmission connection is established with the network-connected device based on the second frequency band, and networking communication is performed based on the relay transmission channel of the relay transmission connection; The network-connected device is a power grid device whose real-time network status is normal.

2. A method for network communication of power grid equipment according to claim 1, characterized in that: The performing a real-time cell search based on a preset first frequency band to obtain first cell information, and determining a real-time network state based on the first cell information, includes: Performing a real-time cell search based on a preset first frequency band to obtain first cell information, and obtaining a wireless signal strength and a wireless signal quality based on the first cell information; If the wireless signal strength is greater than a preset first signal strength threshold, and the wireless signal quality is greater than a preset first signal quality threshold, then the real-time network status of the current device is normal; If not, the real-time network status of the current device is abnormal.

3. A method for network communication of power grid equipment according to claim 2, characterized in that: The second frequency band is mutually exclusive with the first frequency band; and establishing a relay transmission connection based on the preset second frequency band includes: Relay request information is received based on a preset second frequency band, and when the wireless signal strength is greater than a preset second signal strength threshold and the wireless signal quality is greater than a preset second signal quality threshold, a relay transmission connection is established based on the relay request information.

4. A method for network communication of power grid equipment according to claim 3, characterized in that: The networking communication based on the transmission channel of the cellular wireless network and the intermediate transmission connection includes: The first service data is acquired based on the relay transmission channel, and the first service data is forwarded based on the cellular wireless network.

5. A method for network communication of power grid equipment according to claim 4, characterized in that: The relay transmission channel based on the relay transmission connection and the cellular wireless network perform networking communication, including: Acquire second service data based on the cellular wireless network, and acquire a target device ID based on the second service data; If the target device ID is the current power grid device, the second service data is parsed and processed; If the target device ID is not the current power grid device, the second service data is forwarded based on the relay transmission channel and the target device ID.

6. A method for network communication of power grid equipment according to claim 5, characterized in that: The performing networking communication based on the relay transmission channel of the relay transmission connection includes: Packing the service data of the current power grid equipment to generate third service data, and forwarding the third service data based on the relay transmission channel; Acquire fourth service data based on the relay transmission channel, and parse and process the fourth service data.

7. A network communication device for power grid equipment, characterized in that: include: State judgment module and communication module; The state judgment module is used to perform a real-time cell search based on a preset first frequency band to obtain first cell information, and determine a real-time network state based on the first cell information; The communication module is configured to, if the real-time network status is normal, access the cellular wireless network based on the first cell information, establish a relay transmission connection based on a preset second frequency band, and perform networking communication based on the transmission channel of the cellular wireless network and the intermediate transmission connection; The communication module is used to establish a relay transmission connection with the connected device based on the second frequency band if the real-time network status is abnormal, and to perform networking communication based on the relay transmission channel of the relay transmission connection; the connected device is a power grid device whose real-time network status is normal.

8. A network communication device for power grid equipment according to claim 7, characterized in that: The second frequency band is mutually exclusive with the first frequency band, the communication module includes a first communication module and a second communication module; when the real-time network status is normal, the second communication module is used to: Relay request information is received based on a preset second frequency band, and when the wireless signal strength is greater than a preset second signal strength threshold and the wireless signal quality is greater than a preset second signal quality threshold, a relay transmission connection is established based on the relay request information.

9. A network communication device for power grid equipment according to claim 8, characterized in that: When the real-time network status is normal, the first communication module is used to: Acquire second service data based on the cellular wireless network, and acquire a target device ID based on the second service data; If the target device ID is the current power grid device, the second service data is parsed and processed; If the target device ID is not the current power grid device, the second service data is forwarded based on the relay transmission channel and the target device ID.

10. A network communication device for power grid equipment according to claim 9, characterized in that: When the real-time network status is abnormal, the second communication module is used to: Packing the service data of the current power grid equipment to generate third service data, and forwarding the third service data based on the relay transmission channel; Acquire fourth service data based on the relay transmission channel, and parse and process the fourth service data.

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