EPDT fusion module, communication system, and routing planning method and apparatus

Abstract

The present application provides an EPDT fusion module, a communication system, and a routing planning method and apparatus. The EPDT fusion module comprises: a remote communication radio frequency submodule configured to forward data between an EPDT base station and a main control processing submodule; a local communication radio frequency submodule configured to forward data between an EPDT local module and the main control processing submodule; and the main control processing submodule configured such that on the basis of the data sent by the remote communication radio frequency submodule or the local communication radio frequency submodule, the main control processing submodule determines to perform forwarding or service processing on the data. The EPDT fusion module, communication system, and routing planning method and apparatus provided in embodiments of the present application achieve the visualization of networking topology for remote communication, local communication and network-wide communication, and achieve the performance monitoring of any communication module in the whole network.

Description

EPDT fusion module, communication system, routing planning method and device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 2024101902459 and application date of February 21, 2024, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated into this application by introduction. Technical Field

[0003] The embodiments of the present application relate to the field of power communication technology, and in particular to an EPDT fusion module, a communication system, and a routing planning method and device. Background Art

[0004] Among the related technologies, the construction of fiber-optic private networks is difficult and costly; the speed of 230M digital radio is low, the industrial chain is imperfect, and a complete standard system has not been formed; the construction cost of 230M LTE-G / 230M IoT-G is high, the industrial chain is imperfect, and there have been no new power applications in recent years. Most manufacturers have abandoned this technology product line; the frequency of 1800M LTE private networks in power applications is controlled and does not meet the application conditions; the security of wireless virtual private networks carrying control-related services is still under demonstration, and the State Grid Digitalization Department, the National Dispatching Bureau and other communications management departments have not yet provided clear policy support, which poses a hidden danger.

[0005] In summary, existing technical routes have different risks such as frequency management policies and industrial chain completeness. Therefore, reliable and stable wireless private network technology is urgently needed to support the construction of new power load management systems.

[0006] Summary of the Invention

[0007] In view of this, the embodiments of the present application propose an EPDT fusion module, a communication system, a routing planning method and a device, aiming to solve the above problems.

[0008] In the first aspect, an embodiment of the present application provides an EPDT fusion module, including: a remote communication RF sub-module, configured to forward data between the EPDT base station and the main control processing sub-module; a local communication RF sub-module, configured to forward data between the EPDT local module and the main control processing sub-module; and a main control processing sub-module, configured to determine whether to forward data or perform business processing based on the data sent by the remote communication RF sub-module or the local communication RF sub-module.

[0009] Furthermore, in the case of downlink communication, the remote communication RF sub-module is also configured to receive the first master station data sent by the EPDT base station, perform EPDT remote protocol processing, obtain first business data, and send the first business data to the main control processing sub-module; the main control processing sub-module is also configured to receive the first business data, obtain a first transmission status based on the first business data, and if the first transmission status is a relay mode, send the first business data to the local communication RF sub-module for EPDT local protocol processing and then send it to the EPDT local module; if the first transmission status is a terminal mode, send the first business data to the business terminal for business processing.

[0010] Furthermore, in the case of uplink communication, the local communication RF sub-module is also configured to receive the second master station data sent by the EPDT local module, perform EPDT local protocol processing, obtain second business data, and send the second business data to the main control processing sub-module; the main control processing sub-module is also configured to receive the second business data, obtain a second transmission state based on the second business data, and if the second transmission state is a relay mode, send the second business data to the remote communication RF sub-module for EPDT remote protocol processing and then send it to the EPDT base station; if the second transmission state is a terminal mode, send the second business data to the business terminal for business processing.

[0011] In the second aspect, an embodiment of the present application also provides a communication system, including: the EPDT fusion module provided by the above-mentioned embodiments, configured to send broadcast information to the EPDT local module, receive and summarize the information returned by the EPDT local module, and send the summarized information to the EPDT base station; the EPDT local module is configured to receive the broadcast message sent by the EPDT fusion module, and forward the broadcast message to other EPDT local modules or return information to the EPDT fusion module; the EPDT base station is configured to receive the information summarized by the EPDT fusion module and send it to the unified management platform of the communication terminal.

[0012] Furthermore, the EPDT fusion module adopts the EPDT remote communication protocol; the EPDT local module adopts the EPDT local protocol frame.

[0013] In a third aspect, an embodiment of the present application also provides a routing planning method, which is applied to the EPDT fusion module provided in each of the above embodiments, including: obtaining a list of backup routing networks for each EPDT local module; based on the backup routing network lists of all EPDT local modules, obtaining all backup routes and the received signal strength indication (RSSI) values ​​of all backup routes, and selecting the backup route with the largest RSSI value as the backup update route.

[0014] Furthermore, obtaining the backup routing networking list of each EPDT local module includes: sending a networking test request to each EPDT local module so that each EPDT local module returns test data; receiving the test data of each EPDT local module, and determining whether the RSSI value after the timer T1 exceeds the preset threshold, if it exceeds the preset threshold, recording the RSSI value and entering it into the backup routing networking list; and returning the backup routing networking list.

[0015] Furthermore, based on the backup route networking list of all EPDT local modules, all backup routes and the RSSI values ​​of all backup routes are obtained, and the backup route with the largest RSSI value is selected as the backup update route, including: based on the backup route networking list of all EPDT local modules, the backup routes from the EPDT fusion module to all EPDT local modules are listed, and the minimum RSSI strength value is selected as the RSSI strength value between two EPDT local modules on the backup route to obtain the RSSI values ​​of all backup routes; the p paths with the highest RSSI values ​​among all backup routes are retained as backup update routes, and after optimizing the remaining other backup routes, the previous step is returned to obtain the backup update routes of other routes, where p is a positive integer.

[0016] Further, the remaining backup routes are optimized, including: optimizing the remaining paths based on the principle that no more than q paths of each backup route as relay nodes are used, where q is a positive integer.

[0017] Fourthly, an embodiment of the present application also provides a routing planning device, which is applied to the EPDT fusion module provided in the above embodiments, including: an acquisition unit, configured to obtain the backup routing networking list of each EPDT local module; a processing unit, configured to obtain all backup routes and the RSSI values ​​of all backup routes based on the backup routing networking list of all EPDT local modules, and select the backup route with the largest RSSI value as the backup update route.

[0018] In a fifth aspect, an embodiment of the present application further provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the routing planning method provided in each embodiment is implemented.

[0019] The EPDT fusion module provided in the embodiment of the present application includes a remote communication RF sub-module, a local communication RF sub-module and a main control processing sub-module, which integrates local communication and remote communication, unified baseband processing, flexible RF configuration, and the design and development of standardized communication modules, which reduces the difficulty of research and development and saves costs overall, is conducive to production testing and on-site deployment, and realizes the full-network communication networking topology display of remote communication and local communication, realizes performance monitoring of any communication module in the entire network, and truly realizes unified management of communication terminals.

[0020] The communication system provided in the embodiment of the present application can obtain the information of the EPDT fusion module through the EPDT base station; the EPDT fusion module obtains the information of all EPDT local modules in the local network of the EPDT fusion module through the routing planning update, address coding, signal strength and other methods mentioned above. The entire communication network can realize the unified display of the topology of network terminals and the performance monitoring of any communication module in the entire network without the need for equipment modification and protocol adaptation, and uniformly display it on the unified management platform of the communication terminal, which greatly improves the operation and maintenance management capabilities of the communication terminal.

[0021] The routing planning method and device provided in the embodiments of the present application obtain the backup routing networking list of each EPDT local module, and based on the backup routing networking list of all EPDT local modules, obtain all backup routes and the RSSI values ​​of all backup routes, and select the backup route with the largest RSSI value as the backup update route, providing a new routing planning method that effectively ensures communication quality and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] FIG1 shows a schematic structural diagram of an EPDT fusion module according to an embodiment of the present application;

[0023] FIG2 shows a schematic structural diagram of a communication system according to an embodiment of the present application;

[0024] FIG3 shows an exemplary flow chart of a route planning method according to an embodiment of the present application;

[0025] FIG4 is a schematic diagram showing all backup routes of a local network according to an embodiment of the present application;

[0026] FIG5 is a schematic diagram showing a backup update route of an optimized local network according to an embodiment of the present application;

[0027] FIG6 shows a schematic structural diagram of a route planning device according to an embodiment of the present application. DETAILED DESCRIPTION

[0028] Exemplary embodiments of the present application will now be described with reference to the accompanying drawings. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to provide a detailed and complete disclosure of the present application and to fully convey the scope of the present application to those skilled in the art. The terms used in the exemplary embodiments shown in the accompanying drawings are not intended to limit the present application. In the accompanying drawings, the same reference numerals are used for the same units / elements.

[0029] Unless otherwise specified, the terms used herein (including technical terms) have the meanings commonly understood by those skilled in the art. In addition, it is understood that terms defined in commonly used dictionaries should be understood to have the same meanings as those in the context of the relevant fields, and should not be understood as idealized or overly formal meanings.

[0030] PDT can be understood as Police Digital Trunking or Professional Digital Trunking, and is applicable to various professional industries such as public security, emergency response, forestry, fire fighting, electricity, and railways.

[0031] PDT has been widely adopted, achieving nationwide networking for the public security sector. In 2017, the Ministry of Public Security gradually began promoting nationwide PDT networking. By the end of 2020, network coverage will reach 100% in major urban areas, over 95% along national and provincial highways, and over 70% in suburban and rural areas. On average, 90% of frontline police officers in cities and prefectures are equipped with PDT radios, achieving four-level network connectivity at the ministry, provincial, municipal, and county levels. Currently, PDT has connected 290 core networks in 22 provinces, achieving nationwide networking and automatic roaming for the public security wireless private network. This completes the establishment of a "single network" for public security digital wireless emergency command, making it the world's largest dedicated digital trunked network.

[0032] PDT services include voice services, which are used by people and are suitable for mobile scenarios such as handheld and vehicle-mounted devices. Power services include data services, which are used by devices in fixed scenarios. These control-related services have high requirements for communication reliability. PDT's application in the 230MHz power frequency band requires further adaptation and modification, including upgrading the single-channel bandwidth from 12.5kHz to 25kHz, converting voice services to data services, and reconfiguring the RF front-end from the public security 350MHz band to the power 230MHz band.

[0033] To meet the dedicated network carrying needs of new load management systems and other control-related services, this application proposes an EPDT (Electric Power Wireless Trunking Private Network) product based on the PDT Professional Digital Trunking design and adapted to smart energy units. EPDT draws on PDT technology and can be expanded to support the 230MHz licensed frequency band, providing seamless coverage over large areas. In the embodiments of this application, the EDPT product can also be understood as an Electrical-Power Professional Data Transmission system.

[0034] FIG1 shows a schematic structural diagram of an EPDT fusion module according to an embodiment of the present application.

[0035] As shown in Figure 1, the EPDT fusion module includes:

[0036] The remote communication radio frequency submodule 101 is configured to forward data between the EPDT base station and the main control processing submodule 103;

[0037] The local communication radio frequency submodule 102 is configured to forward data between the EPDT local module and the main control processing submodule 103;

[0038] The main control processing submodule 103 is configured to determine whether to forward the data or perform service processing based on the data sent by the remote communication radio frequency submodule 101 or the local communication radio frequency submodule 102 .

[0039] Furthermore, during downlink communication, the remote communication radio frequency submodule 101 is further configured to receive the first master station data sent by the EPDT base station, perform EPDT remote protocol processing, obtain the first service data, and send the first service data to the main control processing submodule 103;

[0040] The main control processing submodule 103 is also configured to receive the first business data, obtain a first transmission state based on the first business data, and if the first transmission state is the relay mode, send the first business data to the local communication radio frequency submodule 102 for EPDT local protocol processing and then send it to the EPDT local module; if the first transmission state is the terminal mode, send the first business data to the business terminal for business processing.

[0041] Furthermore, during uplink communication, the local communication radio frequency submodule 102 is further configured to receive the second master station data sent by the EPDT local module, perform EPDT local protocol processing, obtain the second service data, and send the second service data to the master control processing submodule 103;

[0042] The main control processing submodule 103 is further configured to receive second business data, obtain a second transmission state based on the second business data, and if the second transmission state is a relay mode, send the second business data to the remote communication radio frequency submodule 101 for EPDT remote protocol processing and then send it to the EPDT base station; if the second transmission state is a terminal mode, send the second business data to the business terminal for business processing.

[0043] The remote communication radio frequency submodule is configured to process the communication radio frequency reception and transmission between the EPDT fusion module and the EPDT base station;

[0044] The local communication RF submodule is configured to process the communication RF reception and transmission between the EPDT fusion module and the EPDT local module.

[0045] The main control processing submodule is configured to control, calculate, process, and store the EPDT fusion module.

[0046] EPDT remote protocol processing refers to the modulation, demodulation, encoding, decoding, encryption and decryption processes of the EPDT remote communication submodule; EPDT local protocol processing refers to the modulation, demodulation, encoding, decoding, encryption and decryption processes of the EPDT local communication submodule.

[0047] The transmission status is set on demand, including relay mode and terminal mode. Relay mode means that the EPDT fusion module is not the final node for business processing. The EPDT fusion module does not process through the business terminal and quickly forwards data to the local network; terminal mode means that the EPDT fusion module is the final node for business processing. The EPDT fusion module returns the business terminal data for business processing.

[0048] In the embodiment of the present application, the structures in the EPDT fusion module are as follows:

[0049] (1) Main control processing submodule

[0050] The main control submodule of the EPDT fusion module is the control and signal processing core of the device.

[0051] The main control submodule completes local management, service data modulation and demodulation, encoding and decoding, up / down conversion, analog / digital and digital / analog conversion, equipment frequency control, data encryption / decryption processing, digital trunking air interface and related protocol stacks.

[0052] In the embodiment of the present application, the main control submodule includes an ARM&DSP processor chip, an external memory chip, a power management chip, etc. The main control submodule also provides various peripheral interfaces to complete the communication function.

[0053] (2) Remote communication radio frequency submodule

[0054] The remote communication RF submodule of the EPDT fusion module provides a channel for device RF signal processing.

[0055] The functions implemented by the remote communication RF submodule include: transmitting and receiving channel switching; filtering, amplification, frequency conversion, frequency selection, and frequency discrimination output of the received signal; large signal protection and gain control; filtering and amplification of the transmitting RF signal; harmonic suppression and power control; and generation of local oscillator signals.

[0056] (3) Local communication RF submodule

[0057] The local communication RF sub-module is similar to the long-distance communication RF sub-module in principle, adopts low-power mode, and is implemented based on a customized chip.

[0058] The business terminal is the main control module of the smart energy unit (Customer Terminal Unit, CTU) where the EPDT fusion module is located.

[0059] The Smart Energy Unit (SEU) is an edge computing device that supports load management systems in achieving refined load management, precise load regulation, and diversified interactive services. It features minute-level load monitoring, rigid control, flexible regulation, power metering, and user-friendly interaction. Designed with minimization, distribution, and modularity in mind, it extends to the customer side and is installed in the user's main (sub) distribution room and branch circuits. It enables categorized monitoring and management of customer loads, guiding user load resource adjustment, and offers simple operation, economical safety, efficient management, and strong interactivity.

[0060] Type design: Based on the control method, it is divided into monitoring and control type (Type A) and monitoring and regulation type (Type B). The monitoring and control type (Type A) features telemetry, telesignaling, and remote control, supports wireless power network and fiber-optic power network communications, and is suitable for branch monitoring and rigid control scenarios. The monitoring and regulation type (Type B) features telemetry, telesignaling, and remote regulation, supports wireless virtual private network and wireless private network communications, and is suitable for branch monitoring, flexible regulation, and interactive services. Device switching and evolution can be achieved through module replacement.

[0061] The communication distance between the load control master station and the smart energy unit is generally long. The load control master station is located in the power equipment room, while the smart energy unit is installed in the user's on-site power distribution room, which is considered long-distance communication. The distance between the smart energy unit and the measurement unit is relatively close, generally within a few hundred meters, which is considered local communication.

[0062] In traditional solutions, remote and local communications use different technologies, such as 4G for remote communication and HPLC for local communication. Remote and local communications use completely different communication networks, and communication terminals are generally not centrally managed and operated.

[0063] Traditional smart energy units consist of a main control module, a remote control module, a telemetry module, a remote communication module, and a local communication module. The main control module is the core control and processing module of the smart energy unit. The remote control module is responsible for processing remote control commands and controlling devices such as circuit breakers and switches. The telemetry module is responsible for collecting load control data. The remote communication module is responsible for the interaction between the smart energy unit and the master station. The local communication module is responsible for the interaction between the smart energy unit and switches, measurement units, etc.

[0064] The EPDT fusion module provided in the embodiment of the present application includes a remote communication RF sub-module and a local communication RF sub-module, that is, the EPDT fusion module includes remote communication and local communication, thereby simplifying the smart energy unit, reusing computing and storage capabilities, and reducing costs.

[0065] In related technologies, power collection and distribution systems are managed using a dual network with separate local and remote communications. Remote communications use the public 4G network for data collection, while local data is often collected using a dual-mode HPLC / RF communication system. These systems generally lack a communication network management system, making unified management and maintenance difficult.

[0066] For the communication support solution of the new load control system, the common remote communication methods are 4G / 5G, optical communication, and wireless private network; the common local communication methods are HPLC, HPLC dual-mode, 485, and Ethernet. To achieve unified management and control of remote and local communications, the following solutions are available:

[0067] Solution 1: It is necessary to match and integrate the communication module management platform for remote communication (such as network management) and the communication module management platform for local communication (such as network management), adapt the protocol interface, and form a unified network management and other maintenance platforms;

[0068] Solution 2: Local modules and remote modules can be managed based on the load control device (smart energy unit). For example, a communication module management app can be developed in the smart energy unit to connect to the local module and remote module respectively, and the local communication network and remote communication network information can be summarized on the app.

[0069] The EPDT fusion module provided in the above embodiment can meet the dedicated network carrying requirements of smart energy units, provide high-reliability communication guarantee for control-related services, and achieve rigid load control requirements. At the same time, through the local communication module networking communication, local rigid control and load monitoring requirements can be achieved.

[0070] The above embodiment proposes an EPDT fusion module, including a remote communication RF sub-module, a local communication RF sub-module and a main control processing sub-module, which integrates local communication and remote communication, unified baseband processing, flexible RF configuration, and the design and development of standardized communication modules. It reduces the difficulty of research and development, saves costs overall, is conducive to production testing and on-site deployment, and realizes the full-network communication networking topology display of remote communication and local communication, realizes the performance monitoring of any communication module in the entire network, and truly realizes unified management of communication terminals.

[0071] FIG2 shows a schematic structural diagram of a communication system according to an embodiment of the present application.

[0072] As shown in FIG2 , the communication system includes:

[0073] The EPDT fusion module 201 provided in each of the above embodiments is configured to send broadcast information to the EPDT local module 202, receive and aggregate information returned by the EPDT local module 202, and send the aggregated information to the EPDT base station 203;

[0074] The EPDT local module 202 is configured to receive broadcast messages sent by the EPDT fusion module and forward the broadcast messages to other EPDT local modules or return information to the EPDT fusion module 201;

[0075] The EPDT base station 203 is configured to receive the information aggregated by the EPDT fusion module 201 and send it to the communication terminal unified management platform 204 .

[0076] Furthermore, the EPDT fusion module 201 adopts the EPDT remote communication protocol;

[0077] The EPDT local module 202 uses the EPDT local protocol frame.

[0078] In an embodiment of the present application, the communication system includes several EPDT fusion modules and several EPDT local modules, wherein each EPDT fusion module corresponds to several EPDT local modules, so as to obtain information of all EPDT local modules in the local network.

[0079] Among them, the EPDT fusion module adopts the 230MHz EPDT remote communication protocol, and the EPDT local module adopts the 230MHz EPDT local protocol frame.

[0080] In the embodiment of the present application, the EPDT fusion module periodically sends broadcast information to the local network for transmitting low-speed signaling, such as uplink channels, frequency usage status, routing networking and other information.

[0081] When the EPDT local module is in relay mode, it receives information and forwards it immediately; when it is in terminal mode, it receives information from the fusion module, processes it, and feeds back the information.

[0082] The EPDT local module is configured for local transmission, with a range of several hundred meters. It supports the 230MHz frequency, but must avoid the base station's 230MHz frequency before use. The fusion module removes the base station's frequency and plans the local network's frequency. The 230MHz frequency is represented by Fi.

[0083] (1) The EPDT fusion module is configured as a local communication frequency that can be manually configured.

[0084] (2) The EPDT fusion module can be automatically optimized. After the EPDT fusion module is started, it scans the frequency and selects the frequency with the best quality (low Fi noise floor signal) as the frequency to be used. It records M frequency points with good frequency quality and sends them to the local module through broadcast information.

[0085] (3) The EPDT local module automatically optimizes the frequency point. When M frequency points are available, the routing update optimization is performed separately, the RSSI is measured, and the optimal frequency point is determined.

[0086] The local communication frame structure is shown in Table 1:

[0087] Local communication address: 8 bits. All 0s indicate that the fusion module broadcasts to the local network. All 1s indicate that the local module sends to the fusion module. Each other number represents a local communication module and is uniquely coded in a network.

[0088] For example, 00000001 indicates local communication module No. 1; 00000002 indicates local communication module No. 2.

[0089] The above embodiments clarify the communication frequency planning and local communication frame structure.

[0090] Currently, power collection and distribution systems are managed using a dual network with separate local and remote communications. Remote communications utilize the public 4G network for data collection, while local systems typically utilize dual HPLC / RF modes. These systems generally lack a communication network management system, making unified management and maintenance difficult.

[0091] The communication support solution for the new load control system includes 4G / 5G, optical communications, and wireless private networks for remote communications, and HPLC, HPLC dual-mode, 485, and Ethernet for local communications. The goal is to achieve unified management and control of remote and local communications.

[0092] In the above embodiment, the unified management platform of communication terminals can obtain information of the EPDT fusion module (including device code, communication status, performance, etc.) through the EPDT base station; the EPDT fusion module obtains information of all EPDT local modules in the local network of the EPDT fusion module (including routing, address coding, etc.) through the routing planning update, address coding, signal strength, etc. mentioned above. The entire communication network can realize the unified display of the topology of network terminals and the performance monitoring of any communication module in the entire network without the need for equipment modification and protocol adaptation, and uniformly display them on the unified management platform of communication terminals, which greatly improves the operation and maintenance management capabilities of communication terminals.

[0093] FIG3 shows an exemplary flowchart of a route planning method according to an embodiment of the present application.

[0094] This method is applied to the EPDT fusion module provided in each of the above embodiments, as shown in FIG3 , and includes:

[0095] S301: Obtain a list of backup routing networks for each EPDT local module.

[0096] Furthermore, S301 includes:

[0097] Sending a networking test request to each EPDT local module so that each EPDT local module returns test data;

[0098] Receive the test data of each EPDT local module and determine whether the RSSI value after timer T1 exceeds the preset threshold. If it exceeds the preset threshold, record the RSSI value and enter it into the backup routing network list;

[0099] Returns the list of backup routing groups.

[0100] Each EPDT module, including the local EPDT module and the EPDT fusion module, first checks the RSSI strength. For example, EPDT module A sends a network test request. Other EPDT modules B1, B2, B3,...Bn, which receive this information from EPDT module A, then send test data. EPDT module A then receives this data from each module and makes a judgment. If the RSSI strength still does not reach the threshold NR after timer T1 expires, EPDT module A assumes that it is not connected to EPDT module Bi (i is a positive integer, ranging from 1 to n). If the RSSI strength exceeds the threshold NR, the RSSI strength is recorded and entered into a list of backup routes in EPDT module A, including parameters such as the RSSI strength from A to Bi. Similarly, EPDT module Bi can send a network test request to obtain the routes and RSSI strengths from EPDT module Bi to EPDT module A and EPDT module Bj.

[0101] S302: Based on the backup route networking list of all EPDT local modules, all backup routes and their RSSI values ​​are obtained, and the backup route with the largest RSSI value is selected as the backup update route.

[0102] Furthermore, S302 includes:

[0103] Based on the backup route networking list of all EPDT local modules, the backup routes from the EPDT fusion module to all EPDT local modules are listed, and the minimum RSSI strength value is selected as the RSSI strength value between two EPDT local modules on the backup route to obtain the RSSI values ​​of all backup routes;

[0104] The p paths with the highest RSSI values ​​among all the backup routes are retained as backup update routes. After optimizing the remaining backup routes, return to the previous step to obtain the backup update routes of the other routes, where p is a positive integer.

[0105] Further, the remaining backup routes are optimized, including:

[0106] Based on the principle that no more than q paths are used as relay nodes for each backup route, the remaining paths are optimized, where q is a positive integer.

[0107] The local network is initialized by broadcasting information to establish a local network and create a routing table. Each EPDT local module in the local network has a clear route to the EPDT fusion module. Each EPDT local module in the network provides the EPDT fusion module with a list of backup routing configurations and RSSI strengths. The overall network routing is determined by comprehensively considering factors such as communication efficiency and congestion rate, ensuring that each module in the network has a clear route. To ensure communication quality, routing configuration adheres to the following principles: 1) The route with the strongest RSSI strength is selected. When comparing multiple routes, the minimum RSSI strength between two modules on the route is used as the comparison value, and the route with the highest RSSI strength is selected. 2) Each local module should have no more than p routes as relay modules, where q is a positive integer. Preferably, p = 3.

[0108] Route update optimization: initiate route optimization updates regularly or at any time. Select the route with the strongest RSSI strength to ensure communication efficiency. The number of routes in the relay module should not exceed p to ensure low communication congestion.

[0109] Among them, there are two modes for local module communication:

[0110] Relay mode: The EPDT local module acts as a communication relay node to forward communication data;

[0111] End mode: The EPDT local module serves as the end of the communication, interacting with the EPDT fusion module, processing received data, and sending module information.

[0112] Take the simple local network shown in Figure 4 as an example, which includes the EPDT fusion module A and the EPDT local modules Bi, where i ranges from 1 to 8. Routing planning is to plan the path from A to all Bi.

[0113] Step 1: EPDT fusion module A collects the backup routing networking lists of all modules to obtain all the backup routes of the local network. Figure 4 shows a schematic diagram of all the backup routes of the local network according to an embodiment of the present application;

[0114] Step 2: First, list all possible paths from A to Bi. For each path, select the minimum RSSI strength value between two modules on the routing line as the RSSI value of the path. Compare the RSSI values ​​of each path and select the path with the largest RSSI value as the backup update route from A to Bi (Principle 1).

[0115] Step 3: After comparing the RSSI values ​​of all paths from A to Bi (i ranges from 1 to n) in the network, all the backup updated routes from A to Bi are obtained;

[0116] Step 4: If there are more than three paths with Bi as a relay in the obtained network backup update routes, then optimize (Principle 2). The optimization principle includes: retaining the three paths with the highest RSSI values, and after removing the relay node from the remaining paths, follow the method in Step 2 to obtain new backup update routes for the remaining paths;

[0117] Step 5: Get all the backup updated routes from A to Bi. Initiate route optimization update regularly or at any time as needed. Figure 5 shows a schematic diagram of the optimized backup updated routes of the local network according to an embodiment of the present application.

[0118] The above embodiment obtains the backup route networking list of each EPDT local module, obtains all backup routes and the RSSI values ​​of all backup routes based on the backup route networking list of all EPDT local modules, and selects the backup route with the largest RSSI value as the backup update route, thereby providing a new route planning method that effectively ensures communication quality and reliability.

[0119] FIG6 shows a schematic structural diagram of a route planning device according to an embodiment of the present application.

[0120] The routing planning device is applied to the EPDT fusion module provided in each of the above embodiments. As shown in FIG6 , the device includes:

[0121] An acquiring unit 601 is configured to acquire a list of backup routing networks of each EPDT local module;

[0122] The processing unit 602 is configured to obtain all backup routes and their RSSI values ​​based on the backup route networking lists of all EPDT local modules, and select the backup route with the largest RSSI value as the backup update route.

[0123] Furthermore, the acquiring unit 601 is further configured to:

[0124] Sending a networking test request to each EPDT local module so that each EPDT local module returns test data;

[0125] Receive the test data of each EPDT local module and determine whether the RSSI value after timer T1 exceeds the preset threshold. If it exceeds the preset threshold, record the RSSI value and enter it into the backup routing network list;

[0126] Returns the list of backup routing groups.

[0127] Furthermore, the processing unit 602 is further configured to:

[0128] Based on the backup route networking list of all EPDT local modules, the backup routes from the EPDT fusion module to all EPDT local modules are listed, and the minimum RSSI strength value is selected as the RSSI strength value between two EPDT local modules on the backup route to obtain the RSSI values ​​of all backup routes;

[0129] The p paths with the highest RSSI values ​​among all the backup routes are retained as backup update routes. After optimizing the remaining backup routes, return to the previous step to obtain the backup update routes of the other routes, where p is a positive integer.

[0130] Further, the remaining backup routes are optimized, including:

[0131] Based on the principle that no more than q paths are used as relay nodes for each backup route, the remaining paths are optimized, where q is a positive integer.

[0132] The above embodiment obtains the backup route networking list of each EPDT local module, and based on the backup route networking list of all EPDT local modules, obtains all backup routes and the RSSI values ​​of all backup routes, and selects the backup route with the largest RSSI value as the backup update route, thereby providing a new route planning device method that effectively ensures communication quality and reliability.

[0133] An embodiment of the present application further provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the routing planning method provided in each embodiment is implemented.

[0134] The present application has been described with reference to a few embodiments. However, it is known to those skilled in the art that other embodiments than those disclosed above are equally within the scope of the present application, as defined by the appended patent claims.

[0135] Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise herein. All references to "a / the [means, component, etc.]" are to be interpreted openly as referring to at least one instance of the means, component, etc., unless explicitly stated otherwise. The steps of any method disclosed herein do not necessarily need to be performed in the exact order disclosed, unless explicitly stated otherwise.

[0136] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0137] The present application is described with reference to the flow chart and / or block diagram of the method, device (system), and computer program product according to the embodiment of the present application. It should be understood that each flow process and / or box in the flow chart and / or block diagram and the combination of the flow process and / or box in the flow chart and / or block diagram can be realized by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processing machine or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for realizing the function specified in one flow chart flow or multiple flows and / or one box or multiple boxes of the block diagram.

[0138] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0139] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0140] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit them. Although the present application has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present application can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present application should be included in the scope of protection of the claims of the present application.

Claims

1. An EPDT fusion module, comprising: A remote communication radio frequency submodule configured to forward data between the EPDT base station and the main control processing submodule; The local communication radio frequency submodule is configured to forward data between the EPDT local module and the main control processing submodule; The main control processing submodule is configured to determine whether to forward the data or perform business processing based on the data sent by the remote communication radio frequency submodule or the local communication radio frequency submodule.

2. The EPDT fusion module according to claim 1, wherein: In the case of downlink communication, the remote communication radio frequency submodule is further configured to receive first master station data sent by the EPDT base station, perform EPDT remote protocol processing, obtain first service data, and send the first service data to the main control processing submodule; The main control processing submodule is further configured to receive the first business data, obtain a first transmission state based on the first business data, and if the first transmission state is a relay mode, send the first business data to the local communication radio frequency submodule for EPDT local protocol processing and then send it to the EPDT local module; if the first transmission state is a terminal mode, send the first business data to the business terminal for business processing.

3. The EPDT fusion module according to claim 1, wherein: In the case of uplink communication, the local communication radio frequency submodule is further configured to receive the second master station data sent by the EPDT local module, perform EPDT local protocol processing, obtain second service data, and send the second service data to the main control processing submodule; The main control processing submodule is further configured to receive the second business data, obtain a second transmission state based on the second business data, and if the second transmission state is a relay mode, send the second business data to the remote communication radio frequency submodule for EPDT remote protocol processing and then send it to the EPDT base station; if the second transmission state is a terminal mode, send the second business data to the business terminal for business processing.

4. A communication system comprising: The EPDT fusion module according to any one of claims 1 to 3, configured to send broadcast information to the EPDT local module, receive and aggregate information returned by the EPDT local module, and send the aggregated information to the EPDT base station; The EPDT local module is configured to receive the broadcast message sent by the EPDT fusion module and forward the broadcast message to other EPDT local modules or return information to the EPDT fusion module; The EPDT base station is configured to receive the information summarized by the EPDT fusion module and send it to the communication terminal unified management platform.

5. The communication system according to claim 4, wherein: The EPDT fusion module adopts the EPDT remote communication protocol; The EPDT local module adopts the EPDT local protocol frame.

6. A routing planning method, applied to the EPDT fusion module according to any one of claims 1 to 3, comprising: Get the list of backup routing groups for each EPDT local module; Based on the backup route networking list of all EPDT local modules, all backup routes and their RSSI values ​​are obtained, and the backup route with the largest RSSI value is selected as the backup update route.

7. The routing planning method according to claim 6, wherein: The step of obtaining the backup routing networking list of each EPDT local module includes: Sending a networking test request to each EPDT local module so that each EPDT local module returns test data; Receive test data from each EPDT local module and determine whether the RSSI value after the timer exceeds the preset threshold. If it exceeds the preset threshold, record the RSSI value and enter it into the backup routing network list; Returns the list of backup routing groups.

8. The routing planning method according to claim 6, wherein: Based on the backup routing list of all EPDT local modules, all backup routes and their RSSI values ​​are obtained, and the backup route with the largest RSSI value is selected as the backup update route, including: Based on the backup route networking list of all EPDT local modules, the backup routes from the EPDT fusion module to all EPDT local modules are listed, and the minimum RSSI strength value is selected as the RSSI strength value between two EPDT local modules on the backup route to obtain the RSSI values ​​of all backup routes; The p paths with the highest RSSI values ​​among all the backup routes are retained as backup update routes. After optimizing the remaining backup routes, return to the previous step to obtain the backup update routes of the other routes, where p is a positive integer.

9. The routing planning method according to claim 8, wherein: Optimize the remaining backup routes, including: Based on the principle that no more than q paths are used as relay nodes for each backup route, the remaining paths are optimized, where q is a positive integer.

10. A route planning device, applied to the EPDT fusion module according to any one of claims 1 to 3, comprising: An acquisition unit configured to acquire a list of backup routing networks of each EPDT local module; The processing unit is configured to obtain all the backup routes and RSSI values ​​of all the backup routes based on the backup route networking list of all the EPDT local modules, and select the backup route with the largest RSSI value as the backup update route.

11. A computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the routing planning method according to any one of claims 6 to 9 is implemented.

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