FTU management and control method and system combining 5G and ZigBee

Abstract

The invention relates to the technical field of data transmission, and provides an FTU management and control method and system combining 5G and ZigBee. The method comprises the following steps of: establishing a ZigBee looped network, wherein the ZigBee looped network comprises a plurality of FTU (Feeder Terminal Unit) equipment; determining a main control device from the plurality of FTU devices; the main control device obtains the connection state information of the plurality of FTU devices through the ZigBee ring network; wherein the connection state information comprises a connection state between each FTU (Feeder Terminal Unit) device in the ZigBee looped network and a 5G base station corresponding to the ZigBee looped network; the main control equipment sends a first heartbeat message to a 5G base station corresponding to the ZigBee ring network; wherein the first heartbeat message carries the connection state information. According to the invention, the problem that the data between the FTUs and the 5G base station cannot be normally transmitted due to the interruption of a 5G peer-to-peer communication tunnel between the FTUs and the like is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of data transmission, and particularly to a method and system for controlling and managing FTU by combining 5G and ZigBee. Background Art

[0002] In order to promote the intelligent and efficient management of distribution in the substation area and reduce the intensity of traditional operation and maintenance, in the intelligent Internet of Things system, a fusion distribution terminal is often used to upload service data to the Internet of Things platform. As an edge device in the intelligent Internet of Things system, the fusion distribution terminal is responsible for information collection in the distribution substation area (for example, the load condition of the transformer, voltage and current parameters of the transmission line, etc.), uploading and receiving data, and edge computing (for example, processing and analyzing the collected data locally), etc., and can monitor the operation status of the distribution substation area in real time, providing strong support for fault judgment and data display of the distribution network in the substation area.

[0003] The fusion distribution terminal has high reliability and stability, can meet the requirements of complex power environments, supports multiple communication methods such as Ethernet, micro-power wireless, and the fifth-generation mobile communication technology (5th Generation Mobile Networks or 5th Generation Wireless Systems, abbreviated as 5G), and can flexibly respond to different network environments to achieve two-way data transmission. The fusion distribution terminal can be a distribution transformer monitoring terminal unit (abbreviated as TTU), a switchgear terminal device (abbreviated as DTU), a feeder terminal unit (abbreviated as FTU), etc.

[0004] In the prior art, the communication settings of the intelligent distributed FTU do not match the mobile communication mechanism, and the FTU is affected by the characteristics of the Radio Resource Control Inactivity (abbreviated as RRC inactivity) of the operator's 5G base station wireless resource management, resulting in frequent release of radio access resources. Therefore, the FTU will frequently drop the line, causing unstable communication of the FTU. Among them, RRC inactivity is a state of the radio resource control protocol, which means that the radio resource control connection between the terminal device (i.e., the FTU) and the 5G base station is in an inactive state; if the FTU is in an idle state or there is no data transmission for a long time, the RRC connection will enter the inactive state; in the RRC inactive state, the FTU can receive control signaling from the 5G base station, but the 5G peer communication tunnel between FTUs is interrupted, and data transmission cannot be performed between the FTU and the 5G base station.

[0005] In view of this, overcoming the defects existing in the prior art is an urgent problem to be solved in the technical field. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a FTU management and control method and system combining 5G and ZigBee. The purpose is to ensure that the communication link to the 5G base station is not interrupted by transmitting the connection status information of each FTU device to the 5G base station through the ZigBee ring network by multiple FTU devices reporting heartbeat messages, improve the communication stability of FTU, and solve the problem that data cannot be normally transmitted between the FTU and the 5G base station due to reasons such as the interruption of the 5G peer communication tunnel between FTUs.

[0007] The present invention adopts the following technical solutions: In the first aspect, the present invention provides a FTU management and control method combining 5G and ZigBee, including: Establish a ZigBee ring network, where the ZigBee ring network includes multiple FTU devices; determine a main control device from the multiple FTU devices; The main control device obtains the connection status information of the multiple FTU devices through the ZigBee ring network; wherein, the connection status information includes: the connection status of each FTU device in the ZigBee ring network with the 5G base station corresponding to the ZigBee ring network; The main control device sends a first heartbeat message to the 5G base station corresponding to the ZigBee ring network; wherein, the first heartbeat message carries the connection status information.

[0008] Further, the main control device sending a first heartbeat message to the 5G base station corresponding to the ZigBee ring network includes: The main control device obtains the connection status information of the multiple FTU devices in the current monitoring period, generates an original heartbeat message carrying the connection status information; The main control device forwards the original heartbeat message to the session management network element to initiate a status reporting request; The session management network element responds to the status reporting request and establishes a status reporting tunnel through the access management network element; The session management network element encapsulates the original heartbeat message according to the information of the status reporting tunnel to obtain a first heartbeat message; The main control device uses the status reporting tunnel to transmit the first heartbeat message to the radio access network to send the first heartbeat message to the 5G base station.

[0009] Further, the session management network element responding to the status reporting request and establishing a status reporting tunnel through the access management network element includes: The user plane network element receives the original heartbeat message from the session management network element, encapsulates the priority field into the original heartbeat message to obtain a first intermediate message; The session management network element encapsulates the first intermediate message to obtain a second intermediate message, and forwards the second intermediate message to the access management network element to respond to the status report request; The session management network element determines a paging policy indication according to the priority field; forwards the paging policy indication and the second intermediate message to the access management network element; The access management network element generates a paging message according to the paging policy and the second intermediate message; sends the paging message to the radio access network; The radio access network processes the paging message according to the priority field and initiates a connection paging request to the master control device; when the master control device responds to the connection paging request, the user plane network element establishes the status report tunnel between the master control device and the 5G base station, so that the master control device and the 5G base station maintain a connection.

[0010] Further, the user plane network element receives the original heartbeat message from the session management network element, and encapsulating the priority field into the original heartbeat message to obtain a first intermediate message includes: When the master control device initiates the status report request, the user plane network element establishes a status report session to facilitate data interaction between the session management network element and the access management network element using the status report session; The user plane network element uses the status report session to receive the original heartbeat message from the session management network element; Mark the priority field in the original heartbeat message according to the preset QoS flow configuration to obtain a first intermediate message, so that the radio access network preferentially processes the paging message according to the priority order of the priority field.

[0011] Further, the session management network element encapsulates the original heartbeat message according to the information of the status report tunnel to obtain a first heartbeat message, including: Obtain the connection status information from the original heartbeat message; Obtain the tunnel endpoint identifier corresponding to the 5G base station from the status report tunnel; Generate a first heartbeat message using the protocol version number, protocol type, heartbeat message type sequence number, the tunnel endpoint identifier, and the connection status information.

[0012] Further, after the master control device sends a first heartbeat message to the 5G base station corresponding to the ZigBee ring network, the following steps are also included: When the 5G base station fails, the 5G base station sends a fault notification message to the access management network element; The access management network element receives the fault notification message and notifies the master FTU device using the ZigBee ring network; wherein, the master FTU device is: the FTU device with the network role of coordinator in the ZigBee ring network; The master FTU device determines the neighboring 5G base station closest to the failed 5G base station from at least one neighboring 5G base station that can be connected to the multiple FTU devices, and allocates new communication resources for the multiple FTU devices through the access management network element, so that the determined neighboring 5G base station establishes a connection with the multiple FTU devices.

[0013] Further, the following steps are also included: The master control device obtains the connection status information of the multiple FTU devices through the ZigBee ring network; When there is a faulty FTU device among the multiple FTU devices, the master control device obtains the normal connection information; wherein, the faulty FTU device is: the FTU device that cannot be normally connected to the 5G base station; the normal connection information is: the connection status information of the FTU devices that are normally connected to the 5G base station among the multiple FTU devices; The master control device sends a second heartbeat message to the 5G base station; wherein, the second heartbeat message carries the normal connection information; The 5G base station receives the normal connection information and determines the device identifier of the faulty FTU device according to the FTU list corresponding to the ZigBee ring network; The 5G base station generates an alarm message carrying the device identifier and sends the alarm message to the user plane network element to report the faulty FTU device to the user plane network element.

[0014] Further, determining the master control device from the multiple FTU devices includes: Among the determined multiple FTU devices, obtain the FTU device with the highest signal strength between it and the 5G base station, and determine the FTU device with the highest signal strength as the master control device.

[0015] In a second aspect, the present invention also provides an FTU control device combining 5G and ZigBee, including: At least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the processor to perform the FTU control method combining 5G and ZigBee described in the first aspect.

[0016] In a third aspect, the present invention further provides a non-volatile computer storage medium storing computer-executable instructions that are executed by one or more processors to complete the FTU control method combining 5G and ZigBee described in the first aspect.

[0017] In a fourth aspect, there is provided a computer program product containing instructions that, when run on a computer or a processor, cause the computer or the processor to execute the FTU control method combining 5G and ZigBee as in the first aspect.

[0018] In a fifth aspect, the present invention further provides an FTU control system combining 5G and ZigBee, including the FTU control device combining 5G and ZigBee as in the second aspect, and using the FTU control method combining 5G and ZigBee described in the first aspect to complete the interaction of the FTU control device combining 5G and ZigBee as in the second aspect.

[0019] Different from the prior art, the present invention has at least the following beneficial effects: The present invention uses the first heartbeat message to report the connection status information to the 5G base station to ensure the point-to-point 5G communication tunnel between FTU devices, so as to improve the communication stability of FTU devices. At the same time, since the connection status information is not an alarm message and does not need to be reported in real time; and FTU devices are often set in substations to monitor transformers, and the positions of each FTU device are in a state of remaining unchanged for a long time, and the 5G base stations that the FTU devices can connect to also remain unchanged for a long time; therefore, the present invention uses the ZigBee ring network to aggregate the FTU devices in a certain area of the substation that are connected to the same 5G base station, jointly apply for 5G slices and multiplex communication tunnels through multiple FTU devices, and use the main control device to collect the connection status information of each FTU device in the ZigBee ring network and upload the connection status information to the 5G base station together, greatly reducing the waste of communication resources, avoiding each FTU device reporting its own connection status to the same 5G base station alone, thereby achieving the purpose of optimizing the overall network bandwidth occupancy, and solving the problem that data cannot be normally transmitted between the FTU and the 5G base station due to reasons such as the interruption of the 5G peer-to-peer communication tunnel between FTUs. Description of the Drawings

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments of the present invention. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 It is a schematic flowchart of a method for controlling and managing FTU by combining 5G and ZigBee provided by an embodiment of the present invention; Figure 2 It is a schematic diagram of a specific example of a ZigBee ring network provided by an embodiment of the present invention; Figure 3 It is a schematic diagram of a specific example of a power dedicated 5G core network provided by an embodiment of the present invention; Figure 4 It is a schematic flowchart of step 30 provided by an embodiment of the present invention; Figure 5 It is a schematic flowchart of step 303 provided by an embodiment of the present invention; Figure 6 It is a schematic diagram of the data exchange interface of a 5G core network element provided by an embodiment of the present invention; Figure 7 It is a schematic flowchart of step 304 provided by an embodiment of the present invention; Figure 8 It is a schematic flowchart of the second method for controlling and managing FTU by combining 5G and ZigBee provided by an embodiment of the present invention; Figure 9 It is a schematic flowchart of the third method for controlling and managing FTU by combining 5G and ZigBee provided by an embodiment of the present invention; Figure 10 It is a schematic diagram of the architecture of a device for controlling and managing FTU by combining 5G and ZigBee provided by an embodiment of the present invention. Detailed implementation manners

[0022] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the following further details the present invention in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] Unless the context otherwise requires, throughout the specification and claims, the term "comprising" is to be construed in an open inclusive sense, i.e., "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "examples", "specific examples", or "some examples", etc. are intended to indicate that the specific features, structures, materials, or characteristics related to the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representations of the above terms do not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials, or characteristics may be included in any one or more embodiments or examples in any appropriate manner, that is, although they may be carried in the embodiments or examples of the above terms due to reasons such as the order and position of appearance, however, it is not limited that they can be carried by one embodiment or example in a combined manner.

[0024] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present disclosure.

[0025] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present disclosure, unless otherwise specified, the meaning of "a plurality" is two or more. In addition, for example, in the description, for the same type of nouns, the method of adding "A" and "B" at the end is used to describe them as two independent individuals. In this case, the features defined with "A" and "B" are only used for the purpose of distinguishing the same type of individuals and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.

[0026] In describing some embodiments, the expressions "coupled", "coupling", "connected" and their derivatives may be used. For example, in describing some embodiments, the term "connected" may be used to indicate that two or more components have direct physical or electrical contact with each other. Another example is that in describing some embodiments, the term "coupled" may be used to indicate that two or more components have direct physical or electrical contact. However, the term "connected" or "coupled" may also mean that two or more components do not have direct contact with each other, but still cooperate or interact with each other, such as "optical path coupling", "wireless connection", etc. The embodiments disclosed herein are not necessarily limited to the content of the present invention.

[0027] In the description of the present invention, the expression "A and / or B" (where A and B are used to formally represent specific feature contents) will be involved. The corresponding expression includes the following three combinations: only A, only B, and the combination of A and B.

[0028] As used in the present invention, "about", "substantially" or "approximately" includes the stated value and the average value within an acceptable deviation range of the specific value, where the acceptable deviation range is determined by a person of ordinary skill in the art considering the measurement being discussed and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system).

[0029] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] Embodiment 1: To solve the above problems, as Figure 1 shown, an FTU control method combining 5G and ZigBee is provided in an embodiment of the present invention, including: Step 10: Establish a ZigBee ring network, where the ZigBee ring network includes multiple FTU devices; determine a main control device from the multiple FTU devices.

[0031] Among them, the main control device is one of the FTU devices in the ZigBee ring network, and the method for determining the main control device is determined by a person of ordinary skill in the art according to the specific usage scenario. In an optional embodiment, from the determined multiple FTU devices, the FTU device with the highest signal strength with the 5G base station is obtained, and the FTU device with the highest signal strength is determined as the main control device.

[0032] The ZigBee network is suitable for multiple FTU devices with short transmission ranges and low data transmission rates; the ZigBee network can be used among thousands of micro-power wireless sensors to achieve coordinated communication relying on a dedicated radio standard. In one embodiment, a ZigBee network can be established first, and by adding multiple routers and terminal device nodes to the ZigBee network and configuring the routing relationships among them, the ZigBee network can form a ring network structure to obtain a ZigBee ring network; full peer-to-peer communication can be achieved among all nodes (i.e., FTU devices), and each node can communicate with other nodes within its wireless communication range without the need for forwarding by other FTU devices. Among them, all FTU devices in the ZigBee ring network can communicate with the same 5G base station, so that the multiple FTU devices can share a communication tunnel to transmit data to the 5G base station.

[0033] As Figure 2 shown is a specific example of the ZigBee ring network; in one embodiment, after the FTU device successfully accesses the corresponding 5G base station, it sends an access message to the monitoring master station to access the 5G core network. Among them, the monitoring master station can be understood as a pre-set server. Before the FTU device registers for the 5G network, each FTU device can use low-speed bandwidth for message transmission through the monitoring master station. It should be noted that Figure 2 the monitoring master station and the transformer are not shown; one end of each power feed line is connected to the corresponding FTU device, and the other end is connected to the transformer monitored by the FTU device.

[0034] In one embodiment, the ZigBee ring network includes: several power feed lines, several FTU devices, ZigBee channels, and General Packet Radio Service (GPRS) channels. Among them, each power feed line is correspondingly connected to each FTU device; each FTU device is connected end to end through the ZigBee channel to form a ring topology structure, and each FTU device is connected end to end through the GPRS channel to form a ring topology structure. In the ZigBee ring network, each FTU device communicates with each other through the ZigBee channel or the GPRS channel. In one embodiment, automatic switching can be achieved between the ZigBee channel and the GPRS channel; specifically, when the corresponding communication signal attenuates too much during transmission, the communication signal is automatically transmitted through the ZigBee channel; when the communication signal encounters an obstacle during transmission, the communication signal is automatically transmitted through the GPRS channel. Among them, the ZigBee channel can be self-organized, with relatively low complexity, low power consumption, and low cost, and the connection cost of the GPRS channel is low, the transmission rate is high, and the access time is short.

[0035] Step 20: The main control device obtains the connection status information of the multiple FTU devices through the ZigBee ring network; wherein, the connection status information includes: the connection status of each FTU device in the ZigBee ring network with the 5G base station corresponding to the ZigBee ring network.

[0036] Since each FTU device in the ZigBee ring network can send and receive messages through the ZigBee ring network for network communication, the main control device can send and receive messages through the ZigBee ring network to collect the connection status information of each FTU device.

[0037] Step 30: The main control device sends a first heartbeat message to the 5G base station corresponding to the ZigBee ring network; wherein, the first heartbeat message carries the connection status information.

[0038] In the embodiment of the present invention, the main control device is used to collect the connection status information of each FTU device in the ZigBee ring network, generate a first heartbeat message carrying the connection status information, and report the first heartbeat message to the 5G base station to ensure that the communication link with the 5G base station is not interrupted.

[0039] For the FTU devices that are online for a long time, in the embodiment of the present invention, the connection status of each FTU device is regularly reported to the corresponding 5G base station through the heartbeat message to ensure that the communication link between the FTU device and the 5G base station is not interrupted.

[0040] The present invention uses the first heartbeat message to report the connection status information to the 5G base station to ensure the point-to-point 5G communication tunnel between FTU devices, so as to improve the communication stability of FTU devices. At the same time, since the connection status information is not an alarm message and does not need to be reported in real time; and FTU devices are often set in substations to monitor transformers, and the positions of each FTU device are in a state of remaining unchanged for a long time, and the 5G base stations that the FTU devices can connect to also remain unchanged for a long time; therefore, the present invention uses the ZigBee ring network to aggregate the FTU devices in a certain area of the substation that are connected to the same 5G base station, jointly apply for 5G slices and multiplex communication tunnels through multiple FTU devices, and use the main control device to collect the connection status information of each FTU device in the ZigBee ring network and upload the connection status information to the 5G base station together, which greatly reduces the waste of communication resources, avoids each FTU device reporting its own connection status to the same 5G base station alone, thereby achieving the purpose of optimizing the overall network bandwidth occupancy, and solves the problem that data cannot be normally transmitted between the FTU and the 5G base station due to reasons such as the interruption of the 5G peer-to-peer communication tunnel between FTU devices.

[0041] Since the heartbeat message can carry parameters such as signal strength and signal direction, and the location of the FTU device remains unchanged for a long time, once the 5G base station establishes a connection with the FTU device, it only needs to continuously notify the 5G base station that the connection between it and the FTU device is normal through the heartbeat message, and then the 5G base station can determine the FTU device based on the initially established connection.

[0042] As Figure 3 shown, in the actual application scenario, the integrated power wireless private network shares the 5G base stations of the public network operator through the power dedicated 5G core network and the User Plane Function (UPF). Through the 5G slice segmentation channel with independent identification and independent encapsulation and the dedicated channel with independent identification, the power service data is transmitted to the power-owned bearer network through the optical fiber connecting the power and the operator's computer room, and finally transmitted to each service system. Among them, the connection from UPF to the 5G core network is carried by the provincial Optical Transport Network (OTN), and the network channel from the 5G base station to the UPF network is carried by the municipal optical fiber network or the provincial backbone optical fiber network. Based on the above power network architecture, in order to illustrate the process of sending the first heartbeat message, as Figure 4 shown, step 30 includes: Step 301: The main control device obtains the connection status information of the multiple FTU devices in the current monitoring period, and generates an original heartbeat message carrying the connection status information.

[0043] Among them, the current monitoring period is the period for each FTU device to report the connection status with the 5G base station, which is selected by those skilled in the art according to the specific usage scenario and is not limited here.

[0044] Step 302: The main control device forwards the original heartbeat message to the session management network element to initiate a status reporting request.

[0045] Among them, a network element is the basic unit in network management and can independently complete a certain transmission function. The 5G core network is responsible for processing and distributing data and is the hub of data flow; the main network elements included in the 5G core network are: Session Management Function (SMF), Access and Mobility Management Function (AMF), and UPF; for the convenience of description, in the embodiments of the present invention, "session management network element" is used to refer to "SMF", "access management network element" is used to refer to "AMF", and "user plane network element" is used to refer to "UPF".

[0046] Among them, the access management network element manages the mobility, access, and handover of user equipment, ensuring the smooth operation of the user equipment in the network. The access management network element provides a session management message transmission channel for the FTU device and the session management network element, etc. The session management network element is used for session management, allocating and managing Internet Protocol (IP) addresses for the FTU device, selecting and controlling the user plane network element, and configuring traffic control in the user plane network element to route traffic to an appropriate destination, etc. The user plane network element is responsible for routing and forwarding 5G core network user plane data packets.

[0047] Step 303: In response to the status report request, the session management network element establishes a status report tunnel through the access management network element.

[0048] Among them, the status report tunnel is a communication tunnel; the method for establishing the status report tunnel is selected by those skilled in the art according to specific usage scenarios.

[0049] Step 304: The session management network element encapsulates the original heartbeat message according to the information of the status report tunnel to obtain a first heartbeat message.

[0050] Among them, the first heartbeat message carries information such as the tunnel identifier of the status report tunnel.

[0051] Step 305: The master control device uses the status report tunnel to transmit the first heartbeat message to the radio access network to send the first heartbeat message to the 5G base station.

[0052] In the embodiment of the present invention, the original heartbeat message needs to be confirmed by the session management network element and the access management network element before being sent to the Radio Access Network (RAN) to ensure that each FTU device remains connected to the 5G base station. Among them, the radio access network is responsible for connecting all terminal devices (such as FTU devices) to the communication network; the 5G base station belongs to the radio access network.

[0053] To illustrate the process of establishing the status report tunnel, as Figure 5 shown, the step 303 includes: Step 3031: The user plane network element receives the original heartbeat message from the session management network element, encapsulates the priority field into the original heartbeat message to obtain a first intermediate message.

[0054] Among them, the priority field is used to: indicate the priority of the data stream to which the heartbeat message belongs during network transmission; in one embodiment, the priority field may use the Differentiated Services Code Point (DSCP) value; the DSCP value is a field in the IP data packet and is used to implement different levels of QoS in network communication. In an alternative embodiment, the header of the original heartbeat message may include a priority field.

[0055] As Figure 6 shown, in one embodiment, the 5G base station interacts with the access management network element through the N2 interface for control plane signaling and interacts with the user plane network element through the N3 interface for user plane data. The access management network element interacts with the session management network element through the N11 interface for session management signaling. The session management network element controls the user plane network element through the N4 interface to manage user plane policies and Quality of Service (QoS); among them, QoS is used to describe the service quality and performance that the network can provide when transmitting data streams, aiming to meet the needs of different users and applications by controlling the allocation of network resources and priority management. The user plane network element receives the user plane data of the 5G base station from the edge network through the N3 interface and forwards the data to the external data network through the N6 interface. Among them, the data network refers to the external network accessed by the FTU device through the 5G network and is used to provide various services and applications. For example, it supports the connection of a large number of Internet of Things devices, realizes data interaction between devices, and supports industrial automation and remote control through a data network with low latency and high reliability.

[0056] In the embodiment of the present invention, the FTU device is connected to the 5G core network through the radio access network, so as to communicate with the network as a user equipment. Among them, the FTU device supports 5G radio access technology (such as NR) and establishes a connection with the 5G base station (gNB) through the RRC protocol; the FTU device supports the IP protocol (such as IPv4 or IPv6) and can perform data transmission with the user plane network element through the GPRS Tunneling Protocol for User Plane (GTP-U) protocol. The user plane network element performs QoS processing on the data stream of the FTU device according to the policy issued by the session management network element (that is, encapsulates the priority field into the original heartbeat message) to ensure the priority and bandwidth of data transmission.

[0057] Specifically, after receiving the original heartbeat message, the user plane network element marks the priority field of the heartbeat information as a specific value according to the QoS configuration of the FTU device to indicate the priority of the data stream. In one embodiment, when the master control device initiates the status reporting request, the user plane network element establishes a status reporting session to facilitate data interaction between the session management network element and the access management network element using the status reporting session. The user plane network element uses the status reporting session to receive the original heartbeat message from the session management network element. After detecting the original heartbeat message, the user plane network element sends a data notification message (i.e., the first intermediate message in the following text) to the session management network element through the N4 interface; according to the preset QoS flow configuration, the priority field is marked in the original heartbeat message to obtain the first intermediate message, so that the radio access network can preferentially process the paging message according to the priority order of the priority field. Among them, the preset QoS flow configuration is selected by those skilled in the art according to the specific usage scenario. In an alternative embodiment, the preset QoS flow configuration can be implemented by setting the priority field.

[0058] Step 3032: The session management network element encapsulates the first intermediate message to obtain a second intermediate message, and forwards the second intermediate message to the access management network element to respond to the status reporting request.

[0059] Step 3033: The session management network element determines a paging policy indication according to the priority field; forwards the paging policy indication and the second intermediate message to the access management network element.

[0060] In one embodiment, the session management network element encapsulates information such as the paging policy indicator (PPI), allocation and retention priority (ARP), and 5G QoS identifier (5QI) received from the user plane network element into a message of the N11 interface and sends it to the access management network element. Among them, PPI is used to indicate whether the header of the heartbeat message contains specific paging policy information, and the network side determines how to find and locate the FTU device through PPI; ARP is used to represent the priority of the status reporting session; the higher the ARP value, the higher the priority of the status reporting session, and the network will preferentially allocate and reserve resources for this status reporting session; 5QI is used to distinguish the service quality levels in the 5G network, and different 5QI values correspond to different service quality requirements, such as latency and packet loss rate.

[0061] If the data flow that transmits the heartbeat message belongs to a high-priority service, the session management NE will pass the priority information (such as ARP) to the access management NE.

[0062] Step 3034: The access management network element generates a paging message according to the paging policy and the second intermediate message; and sends the paging message to the wireless access network.

[0063] The access management network element generates a paging message according to the PPI, ARP, 5QI and other information received from the session management network element, and sends it to the wireless access network through the N2 interface. If the priority field indicates that the data flow belongs to a high-priority service, the access management network element will make the paging message carry the paging priority to ensure that the wireless access network prioritizes the paging message.

[0064] Step 3035: The wireless access network processes the paging message according to the priority field, and initiates a connection paging request to the main control device; when the main control device responds to the connection paging request, the user plane network element establishes the status reporting tunnel between the main control device and the 5G base station to keep the main control device connected to the 5G base station.

[0065] After receiving the paging message, the wireless access network pages the FTU device according to the paging priority and the state of the FTU device (eg, RRC inactive state).

[0066] After the FTU device responds to the paging message, the wireless access network will establish a status reporting tunnel to ensure that the first heartbeat message can be continuously and normally transmitted to the corresponding 5G base station.

[0067] To illustrate the first heartbeat message, Figure 7 As shown, step 304 includes: Step 3041: Obtain the connection status information from the original heartbeat message.

[0068] Step 3042: Obtain the tunnel endpoint identifier corresponding to the 5G base station from the status reporting tunnel.

[0069] Step 3043: Generate a first heartbeat message using the protocol version number, protocol type, heartbeat message type sequence number, the tunnel endpoint identifier and the connection status information.

[0070] In one embodiment, the session management network element uses the control plane GPRS tunneling protocol (GPRS Tunneling Protocol - Control Plane, abbreviated as GTP-C) protocol when encapsulating the heartbeat message from the FTU device. A specific example of a first heartbeat message is shown in Table 1 below.

[0071] Table 1 Specific examples of the first heartbeat message

[0072] After being encapsulated by the GTP-C protocol, the first heartbeat message can be correctly transmitted on the N2 interface between the session management network element and the radio access network.

[0073] In a 5G network, when a 5G base station fails, the FTU device connected to the 5G base station needs to be reconnected. As Figure 8 shown, after the step 30, it further includes: Step 401: When the 5G base station fails, the 5G base station sends a fault notification message to the access management network element.

[0074] When the 5G base station detects its own fault or loses connection with other network functions (such as the access management network element), the 5G base station sends a fault notification message to the access management network element through the N2 interface, indicating that it is unavailable.

[0075] Step 402: The access management network element receives the fault notification message and uses the ZigBee ring network to notify the main FTU device; where the main FTU device is: the FTU device with the network role of coordinator in the ZigBee ring network.

[0076] After receiving the fault notification message, the access management network element notifies the main FTU device that the 5G base station is unavailable, so as to notify all FTU devices connected to the 5G base station through internal communication in the ZigBee ring network, indicating that the 5G base station is unavailable.

[0077] Step 403: The main FTU device determines the neighboring 5G base station closest to the failed 5G base station from at least one neighboring 5G base station that can be connected to the multiple FTU devices, and allocates new communication resources for the multiple FTU devices through the access management network element, so that the determined neighboring 5G base station establishes a connection with the multiple FTU devices.

[0078] When the FTU device determines that the 5G base station has a fault, it enters the RRC inactive state and starts listening to the system information broadcast by neighboring cells (such as signal strength and cell identification, etc.) to search for available neighboring 5G base stations. After determining the neighboring 5G base station, the FTU device sends a connection request to the neighboring 5G base station, requesting to establish a new connection. The neighboring 5G base station receives the connection request and sends a connection request message to the access management network element through the N2 interface. The access management network element allocates new communication resources for the FTU device and sends a connection response message to the neighboring 5G base station through the N2 interface. The neighboring 5G base station establishes a connection with the FTU device according to the instructions of the access management network element and resumes the user plane data transmission. When all the FTU devices in the ZigBee ring network complete the connection with the neighboring 5G base station, the network returns to normal.

[0079] When there are FTU devices in the ZigBee ring network that cannot be connected to the corresponding 5G base station, such as Figure 9 shown, it further includes: Step 501: The master control device obtains the connection status information of the multiple FTU devices through the ZigBee ring network.

[0080] Step 502: When there is a faulty FTU device among the multiple FTU devices, the master control device obtains the normal connection information; wherein, the faulty FTU device is an FTU device that cannot be normally connected to the 5G base station; the normal connection information is the connection status information of the FTU devices that are normally connected to the 5G base station among the multiple FTU devices.

[0081] Wherein, the 5G base station corresponding to the ZigBee ring network refers to the same 5G base station that can be connected to all the FTU devices in the ZigBee ring network when the connection status between the FTU device and the 5G base station is normal.

[0082] The master control device obtains the normal connection information through internal communication in the ZigBee ring network, and for the FTU devices in the ZigBee ring network that cannot obtain the normal connection information, they are identified as faulty FTU devices.

[0083] Step 503: The master control device sends a second heartbeat message to the 5G base station; wherein, the second heartbeat message carries the normal connection information.

[0084] The master control device only uses the normal connection information to generate a heartbeat message to inform the 5G base station of the FTU devices with normal connection status.

[0085] Step 504: The 5G base station receives the normal connection information and determines the device identification of the faulty FTU device according to the FTU list corresponding to the ZigBee ring network.

[0086] Since the 5G base station can obtain the device identifiers of all FTU devices in the ZigBee ring network (i.e., the FTU list), it matches the FTU list with the FTU devices corresponding to the normal connection information in the second heartbeat message; when the normal connection information of a certain FTU device does not exist in the second heartbeat message, it determines that the FTU device is a faulty FTU device and obtains its device identifier.

[0087] Step 505: The 5G base station generates an alarm message carrying the device identifier and sends the alarm message to the user plane network element to report the faulty FTU device to the user plane network element.

[0088] The 5G base station reports the alarm message to the user plane network element.

[0089] In the embodiment of the present invention, only the normal connection information is uniformly reported through the ZigBee ring network, avoiding the separate reporting of the connection status by each FTU device, and further optimizing the overall network bandwidth occupancy.

[0090] Embodiment 2: This embodiment also provides a specific example of step 10. Specifically, the established ZigBee ring network is applied to a power distribution area, and the power distribution area includes multiple FTU devices. Determining the head FTU device from multiple FTU devices to establish a ZigBee ring network includes: Step 10: The head FTU device broadcasts a first application message to all FTU devices within the broadcastable area; wherein, the first application message carries the connectable base station identifier, and the connectable base station identifier is: the identifier of one of the 5G base stations connected by the head FTU device.

[0091] Among them, the head FTU device is used to establish a ZigBee network, and the method for determining the head FTU device among multiple FTU devices is determined by those skilled in the art according to the specific usage scenario. The ZigBee network is suitable for communication between multiple FTU devices with a short transmission range and a low data transmission rate.

[0092] Among them, within the broadcastable area, except for the head FTU device, all FTU devices can communicate with the head FTU device, that is, all FTU devices within the broadcastable area can receive the first application message sent by the head FTU device; the broadcastable area is determined by those skilled in the art according to the specific usage scenario. In an optional embodiment, the broadcastable area can be: a range centered on the head FTU device and within a certain value of the distance between the head FTU device and the head FTU device.

[0093] Step 20: When the FTU device meets the first joining condition corresponding to the first application message, establish a first target ZigBee ring network between the head FTU device and the FTU device; wherein, the first joining condition is that the FTU device is connected to the 5G base station corresponding to the connectable base station identifier.

[0094] Wherein, when the FTU device establishes a 5G signal connection with the 5G base station, the signal strength of the corresponding 5G signal is within the corresponding effective range.

[0095] After receiving the broadcast first application message, the FTU device will analyze whether the identifier of the 5G base station connected to itself is the same as the identifier of the 5G base station in the first application message. Only the FTU device that meets the first joining condition will be added to the first target ZigBee ring network by the head FTU device. Since the purpose of establishing the ZigBee network in this embodiment is to enable multiple FTU devices to share a communication tunnel for monitoring data reporting, in order to be able to reuse the communication tunnel, these multiple FTU devices must be connected to the same 5G base station, so that the FTU devices in the subsequent ZigBee ring network can apply for 5G slices, etc. to the same 5G base station.

[0096] In this embodiment, a ZigBee network is first established. By adding multiple router and terminal device nodes and configuring the routing relationship between them, the ZigBee network can form a ring network structure; each node (i.e., the FTU device) can communicate completely peer-to-peer, and each node can communicate with other nodes within its wireless communication range without the need for forwarding by other FTU devices.

[0097] In one embodiment, the FTU device receives a first application message, determines a first joining condition according to the first application message, and when the FTU device meets the first joining condition, the FTU device returns a connection response message to the head FTU device; wherein, the connection response message carries the device identifier of the FTU device. Because the distribution density of 5G base stations is relatively high, there are often multiple FTU devices in the broadcastable area. For example, there are 10 FTU devices in the broadcastable area, 9 of which can establish a 5G signal connection with the same 5G base station, and 1 FTU device can establish a 5G signal connection with another 5G base station. When the connectable base station identifier carried in the first application message is one of the 5G base stations, if among the 10 FTU devices, an FTU device determines that it is also connected to the 5G base station after receiving the first application message, it returns a connection response message to the head FTU device. When the head FTU device receives a connection response message, it indicates that there is an FTU device in the broadcastable area that can share a communication tunnel with the head FTU device to report monitoring data. Therefore, a first target ZigBee ring network can be formed with this FTU device; the network role of the head FTU device is a coordinator, and the head FTU device selects a communication channel and establishes a first initial ZigBee network. The head FTU device receives the connection response messages sent by the FTU devices in the broadcastable area in the order of signal strength from strong to weak. The head FTU device obtains the device identifier of the FTU device from the connection response message to determine the FTU device; assigns a network short address to the FTU device to add the FTU device to the first initial ZigBee network. The FTU device updates the configuration information according to the network short address, so as to communicate in the first target ZigBee ring network according to the configuration information. Among them, the network short address is the unique identifier of the FTU device in the ZigBee network; the configuration information can be the configuration information of the FTU device in the routing table of the first target ZigBee ring network. The head FTU device sequentially receives the connection response messages, assigns a network role and a network short address to the FTU device that sends the connection response message, returns the network short address to the FTU device for confirmation and recording, and then completes adding the FTU device to the first initial ZigBee network; subsequently, the FTU device can use the network short address as its own unique identifier and forward data packets in the first target ZigBee ring network according to the configuration information to communicate with other FTU devices in the first target ZigBee ring network.

[0098] Since FTU devices are often installed in substations to monitor transformers and report monitoring data, the locations of each FTU device are in a long-term static state, and the 5G base stations that can be connected to the FTU devices are also unchanged for a long time. The various monitoring data that need to be reported by the FTU device in each reporting cycle do not change frequently. Therefore, the present invention uses a ZigBee network to aggregate the FTU devices connected to the same 5G base station within the broadcastable area of the substation, so as to facilitate subsequent unified application for 5G slices and multiplexing of communication tunnels based on each ZigBee network. Since the types of multiple FTU devices within the broadcastable range are often the same, the data to be reported is similar, and the bandwidth occupied does not vary greatly. By enabling multiple FTU devices to jointly apply for 5G slices and share communication tunnels for data reporting, for multiple FTU devices within a ZigBee network, when the bandwidth occupied by some FTU devices is low, there are often some FTU devices that occupy a relatively high bandwidth. This avoids each FTU device continuously and individually occupying a high bandwidth, thereby achieving the purpose of optimizing the overall bandwidth occupancy of the network, greatly reducing the waste of communication resources, and solving the problem that when the FTU device only reports alarm data, its bandwidth occupancy still remains at a high level, resulting in an excessively high overall bandwidth occupancy for each FTU device.

[0099] In this embodiment, by establishing a ZigBee network, it is convenient for multiple FTU devices within the same ZigBee network to negotiate internally when subsequent FTU devices need to apply for 5G slices, establish communication tunnels, and report monitoring data.

[0100] While the primary coordinator establishes the first target ZigBee ring network, there are very likely to be FTU devices in the broadcast area that do not meet the first joining condition. In order to enable these FTU devices to optimize bandwidth occupancy by establishing a ZigBee network, when an FTU device does not meet the first joining condition, using this FTU device as the head FTU device, a second ZigBee ring network is established, and a second application message carrying the identifier of the target 5G base station is generated; wherein, the target 5G base station is connected to this FTU device. This FTU device broadcasts the second application message to all FTU devices in the broadcast area; the FTU devices in the broadcast area that have not yet accessed the first target ZigBee ring network and are connected to this target 5G base station respond to the received second application message and return a corresponding joining request message to this FTU device; this FTU device parses the received joining request message to obtain the FTU devices that can jointly form the second target ZigBee ring network, and after establishing the second initial ZigBee network, adds these FTU devices to the second initial ZigBee network to form the second target ZigBee ring network. Among them, the process of this FTU device forming the second target ZigBee ring network is the same as the process of the head FTU device forming the first target ZigBee ring network, which will not be elaborated here.

[0101] After the first target ZigBee ring network is established, when the connection between the primary coordinator and the 5G base station fails, the network role of the head FTU device in the first target ZigBee ring network is determined as the primary coordinator, and an FTU device is selected from the first target ZigBee ring network, and the network role of the selected FTU device is determined as the standby coordinator of the first target ZigBee ring network. When the primary coordinator cannot connect to the corresponding 5G base station, the standby coordinator is switched to the new primary coordinator, and the new primary coordinator creates a new target ZigBee ring network. Among them, the process of the new primary coordinator creating the new target ZigBee ring network is the same as the process of the head FTU device establishing the first target ZigBee ring network, which will not be elaborated here.

[0102] Embodiment 3: As Figure 10 shown, it is a schematic architecture diagram of an FTU control device combining 5G and ZigBee according to an embodiment of the present invention. The FTU control device combining 5G and ZigBee in this embodiment includes one or more processors 21 and a memory 22. Among them, Figure 10 One processor 21 is taken as an example herein.

[0103] The processor 21 and the memory 22 can be connected through a bus or other means, Figure 10 Taking connection through a bus as an example herein.

[0104] The memory 22 serves as a non-volatile computer-readable storage medium and can be used to store non-volatile software programs and non-volatile computer-executable programs, such as the FTU control method combining 5G and ZigBee in this embodiment. The processor 21 executes the FTU control method combining 5G and ZigBee by running the non-volatile software programs and instructions stored in the memory 22.

[0105] The memory 22 may include high-speed random access memory and may also include non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices. In some embodiments, the memory 22 optionally includes a memory remotely located relative to the processor 21, and these remote memories can be connected to the processor 21 through a network. Examples of the above networks include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0106] The program instructions / modules are stored in the memory 22 and, when executed by the one or more processors 21, execute the FTU control method combining 5G and ZigBee in the above embodiment. For example, execute each step of the FTU control method combining 5G and ZigBee in the embodiment of the present invention described above.

[0107] The embodiment of the present invention also provides an FTU control system combining 5G and ZigBee. The FTU control system combining 5G and ZigBee in the embodiment of the present invention includes a plurality of FTU devices; the plurality of FTU devices cooperate with each other to complete the FTU control method combining 5G and ZigBee in Embodiment 1 of the present invention. For specific steps, refer to Embodiment 1 of the present invention and will not be elaborated here.

[0108] The embodiment of the present invention also provides a non-volatile computer storage medium. The computer storage medium stores computer-executable instructions, and when the computer-executable instructions are executed by one or more processors, for example Figure 10 a processor 21, it enables the above one or more processors to execute the FTU control method combining 5G and ZigBee in the specific implementation manner of the present invention. For example, execute each step of the FTU control method combining 5G and ZigBee in the embodiment of the present invention described above; it can also implement Figure 10 the respective modules and units described above; or execute the FTU control method combining 5G and ZigBee in the specific implementation manner of the present invention. For example, execute each step of the FTU control method combining 5G and ZigBee in the embodiment of the present invention described above; it can also implement Figure 10 the respective modules and units described above.

[0109] It should be noted that, regarding the information interaction, execution process, etc. among the modules and units in the above-mentioned device and system, since they are based on the same concept as the method embodiment of the present invention, the specific content can be referred to the description in the method embodiment of the present invention, and will not be elaborated here.

[0110] Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the embodiments can be completed by instructing relevant hardware through a program, and this program can be stored in a computer-readable storage medium. The storage medium can include: read-only memory (ROM, Read Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, etc.

[0111] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A FTU control method combining 5G and ZigBee, characterized in that, Including: Establishing a ZigBee ring network, where the ZigBee ring network includes multiple FTU devices; Determining a main control device from the multiple FTU devices; The main control device obtains connection status information of the multiple FTU devices through the ZigBee ring network; wherein, the connection status information includes: the connection status of each FTU device in the ZigBee ring network with the 5G base station corresponding to the ZigBee ring network; The main control device sends a first heartbeat message to the 5G base station corresponding to the ZigBee ring network; wherein, the first heartbeat message carries the connection status information.

2. The FTU control method combining 5G and ZigBee according to claim 1, wherein The main control device sending a first heartbeat message to the 5G base station corresponding to the ZigBee ring network includes: The main control device obtains the connection status information of the multiple FTU devices in the current monitoring period, and generates an original heartbeat message carrying the connection status information; The main control device forwards the original heartbeat message to the session management network element to initiate a status reporting request; The session management network element responds to the status reporting request and establishes a status reporting tunnel through the access management network element; The session management network element encapsulates the original heartbeat message according to the information of the status reporting tunnel to obtain a first heartbeat message; The main control device uses the status reporting tunnel to transmit the first heartbeat message to the radio access network to send the first heartbeat message to the 5G base station.

3. The FTU control method combining 5G and ZigBee according to claim 2, characterized in that, The session management network element responding to the status reporting request and establishing a status reporting tunnel through the access management network element includes: The user plane network element receives the original heartbeat message from the session management network element, and encapsulates a priority field into the original heartbeat message to obtain a first intermediate message; The session management network element encapsulates the first intermediate message to obtain a second intermediate message, and forwards the second intermediate message to the access management network element to respond to the status reporting request; The session management network element determines a paging strategy indication according to the priority field; forwards the paging strategy indication and the second intermediate message to the access management network element; The access management network element generates a paging message according to the paging strategy and the second intermediate message; sends the paging message to the radio access network; The radio access network processes the paging message according to the priority field and initiates a connection paging request to the main control device; when the main control device responds to the connection paging request, the user plane network element establishes the status reporting tunnel between the main control device and the 5G base station to keep the main control device and the 5G base station connected.

4. The FTU control method combining 5G and ZigBee according to claim 3, characterized in that The user plane network element receiving the original heartbeat message from the session management network element and encapsulating a priority field into the original heartbeat message to obtain a first intermediate message includes: When the main control device initiates the status reporting request, the user plane network element establishes a status reporting session to facilitate data interaction between the session management network element and the access management network element using the status reporting session; The user plane network element uses the status reporting session to receive the original heartbeat message from the session management network element; According to the preset QoS flow configuration, mark the priority field in the original heartbeat message to obtain a first intermediate message, so that the radio access network can preferentially process the paging message according to the priority order of the priority field.

5. The FTU control method combining 5G and ZigBee according to claim 2, characterized in that, The session management network element encapsulates the original heartbeat message according to the information of the status reporting tunnel, and the obtained first heartbeat message includes: Obtain the connection status information from the original heartbeat message; Obtain the tunnel endpoint identifier corresponding to the 5G base station from the status reporting tunnel; Generate a first heartbeat message using the protocol version number, protocol type, heartbeat message type serial number, the tunnel endpoint identifier, and the connection status information.

6. The FTU control method combining 5G and ZigBee according to claim 2, characterized in that, After the master control device sends the first heartbeat message to the 5G base station corresponding to the ZigBee ring network, it further includes: When the 5G base station fails, the 5G base station sends a fault notification message to the access management network element; The access management network element receives the fault notification message and uses the ZigBee ring network to notify the main FTU device; wherein, the main FTU device is the FTU device with the network role of coordinator in the ZigBee ring network; The main FTU device determines the neighboring 5G base station closest to the faulty 5G base station from at least one neighboring 5G base station that can be connected to the multiple FTU devices, and allocates new communication resources for the multiple FTU devices through the access management network element, so that the determined neighboring 5G base station establishes a connection with the multiple FTU devices.

7. The FTU control method combining 5G and ZigBee according to claim 2, wherein It further includes: The master control device obtains the connection status information of the multiple FTU devices through the ZigBee ring network; When there is a faulty FTU device among the multiple FTU devices, the master control device obtains the normal connection information; wherein, the faulty FTU device is the FTU device that cannot be normally connected to the 5G base station; the normal connection information is the connection status information of the FTU devices that are normally connected to the 5G base station among the multiple FTU devices; The master control device sends a second heartbeat message to the 5G base station; wherein, the second heartbeat message carries the normal connection information; The 5G base station receives the normal connection information and determines the device identifier of the faulty FTU device according to the FTU list corresponding to the ZigBee ring network; The 5G base station generates an alarm message carrying the device identifier and sends the alarm message to the user plane network element to report the faulty FTU device to the user plane network element.

8. The FTU control method combining 5G and ZigBee according to any one of claims 1-7, characterized in that, Determining the master control device from the multiple FTU devices includes: From the determined multiple FTU devices, obtain the FTU device with the highest signal strength between it and the 5G base station, and determine the FTU device with the highest signal strength as the master control device.

9. An FTU control system combining 5G and ZigBee, characterized in that, It includes multiple FTU devices; the multiple FTU devices cooperate with each other to complete the FTU control method combining 5G and ZigBee as described in any one of claims 1-8.

10. A non-volatile computer storage medium, characterized in that The computer storage medium stores computer-executable instructions that are executed by one or more processors to implement the FTU management and control method combining 5G and ZigBee according to any one of claims 1-8.

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