CN-121985340-A - Wireless network coverage automatic planning method and system based on line characteristics

CN121985340ACN 121985340 ACN121985340 ACN 121985340ACN-121985340-A

Abstract

The invention discloses a wireless network coverage automatic planning method and system based on line characteristics, which are characterized in that an interval initial line segmentation model is built according to discrete line mileage information, whether the distance between adjacent road sections of the same type is smaller than a preset engineering threshold value is detected and judged, if so, two adjacent road sections which are physically separated are combined to obtain an optimized line segmentation model, the optimized line segmentation model is traversed, all wireless equipment deployment mileage of each road section is calculated according to the road section type based on a preset layout rule, and wireless network equipment entities are automatically generated in CAD drawing based on all wireless equipment deployment mileage of each road section, and annular wireless network topology is automatically constructed. According to the invention, the complex manual design flow is converted into an efficient, accurate and intelligent automatic process through the deep integration of the line characteristic data, the design rules and the CAD platform, so that the quality and the efficiency of the linear engineering wireless network design of railways and the like are improved.

Inventors

ZHU TIESHUAN
CUI JINGJING
DONG XIAOJING
HAN MINZHI
CHEN ZHIYING
GUO PENGCHENG

Assignees

中铁第一勘察设计院集团有限公司
中国铁建股份有限公司

Dates

Publication Date: 20260505
Application Date: 20251223

Claims (10)

1. A wireless network coverage automation planning method based on line characteristics, the method comprising: Obtaining a structured line data file and analyzing the structured line data file to obtain discrete line mileage information, and establishing an interval-based initial line segmentation model according to the discrete line mileage information; Traversing an initial line segment model, detecting and judging whether the distance between adjacent road sections of the same type is smaller than a preset engineering threshold value, and if so, merging two adjacent road sections which are physically separated to obtain an optimized line segment model; Traversing the optimized line segment model, and calculating all wireless equipment deployment mileage of each road section based on a preset layout rule according to the road section type; Based on the deployment mileage of all wireless devices in each road section, automatically generating a wireless network device entity in a CAD drawing, and automatically constructing a ring wireless network topology.
2. The automatic planning method for wireless network coverage based on line features of claim 1, wherein the steps of obtaining a structured line data file and analyzing to obtain discrete line mileage information, and establishing an interval-based initial line segmentation model according to the discrete line mileage information comprise: Converting mileage character strings in a tool Cheng Teyou expression form into standardized floating-point absolute mileage data through regular expression matching and mathematical operation by a built-in analysis rule engine; The discrete mileage data is aggregated into a continuous compartmentalized initial line segment model according to the position type and mileage sequence.
3. The automatic planning method for wireless network coverage based on line characteristics according to claim 1, wherein traversing the optimized line segment model calculates all wireless device deployment mileage of each road section based on a preset layout rule according to the road section type, and specifically comprises: for a tunnel interval, applying a tunnel equipment layout rule, and calculating deployment mileage of all wireless equipment meeting signal coverage requirements based on preset inter-repeater spacing in a tunnel and inter-base station spacing in the tunnel; And for the roadbed/station, applying a roadbed/station layout rule, and calculating the deployment mileage of all wireless equipment meeting the signal coverage requirement based on the preset distance between the roadbed and the station base stations.
4. The automatic planning method for wireless network coverage based on line characteristics according to claim 3, wherein traversing the optimized line segment model, calculating all wireless device deployment mileage of each road section based on a preset layout rule according to the road section type, specifically comprising: when the base station is deployed, if the difference between the theoretical base station deployment mileage and the center mileage of the station is smaller than a preset station adsorption threshold, the base station deployment position is automatically and forcedly corrected to the center mileage point of the corresponding station.
5. The automatic planning method for wireless network coverage based on line characteristics according to claim 1, wherein the wireless network equipment entity is automatically generated in the CAD drawing based on all wireless equipment deployment mileage of each road section, and the loop wireless network topology is automatically constructed, specifically comprising: converting the calculated wireless equipment deployment mileage into CAD coordinates and inserting the CAD coordinates into an equipment block; engineering attribute information is added for each equipment block based on XData technology, wherein the engineering attribute information not only comprises static attributes including equipment type and mileage, but also stores handles of other associated entities.
6. The automatic planning method for wireless network coverage based on line characteristics according to claim 5, wherein the steps of automatically generating wireless network equipment entities in CAD drawings and automatically constructing a ring wireless network topology based on all wireless equipment deployment mileage of each road section comprise: dynamically assigning a main MU and a standby MU for each RU based on the mileage proximity, and storing the corresponding relation in XData of the RU; traversing each MU, reversely inquiring all RUs taking the MU as a main or standby RU, sequencing the corresponding RUs according to mileage, and constructing an ordered list containing the MU and the RUs to form a logic closed loop; And reading topology XData information of each MU, and automatically drawing connecting lines between adjacent node entities in the ring.
7. A method for automated planning of wireless network coverage based on line characteristics as recited in claim 1, further comprising: And generating a correlation chart based on the wireless network equipment deployment information in the CAD graph and dynamically updating the correlation chart.
8. The method for automatically planning wireless network coverage based on line characteristics according to claim 7, wherein the method for automatically planning wireless network coverage based on line characteristics comprises the steps of generating a correlation chart and dynamically updating the correlation chart based on wireless network equipment deployment information in a CAD graph, and specifically comprises the following steps: inquiring XData information of equipment entities in the graph in real time and automatically filling the information into a preset graph template to generate a correlation graph; Based on the real-time interaction modification engine, when a user drags the device entity on the graphical interface, the engine can capture the cursor position in real time, dynamically calculate and immediately display new mileage information of the corresponding device; And automatically triggering a chain reaction, recalculating and drawing all affected communication links, adjusting the positions of associated devices, refreshing all relevant table data, and ensuring that project data are always consistent.
9.A wireless network coverage automation planning system based on line characteristics, the system comprising: the initial line segmentation module is used for acquiring the structured line data file and analyzing to obtain discrete line mileage information, and establishing an interval initial line segmentation model according to the discrete line mileage information; The optimized line segmentation module is used for traversing the initial line segmentation model, detecting and judging whether the distance between adjacent road sections of the same type is smaller than a preset engineering threshold value, and if so, combining the adjacent two road sections which are physically separated to obtain an optimized line segmentation model; The equipment deployment module is used for traversing the optimized line segment model and calculating all wireless equipment deployment mileage of each road section based on a preset layout rule according to the road section type; The CAD generation module is used for automatically generating wireless network equipment entities in CAD drawings based on all wireless equipment deployment mileage of each road section and automatically constructing annular wireless network topology.
10. A wireless network coverage automation planning system based on line characteristics according to claim 9, said system further comprising: And the association updating module is used for generating an association chart and dynamically updating the association chart based on the wireless network equipment deployment information in the CAD graph.

Description

Wireless network coverage automatic planning method and system based on line characteristics Technical Field The invention relates to the technical field of communication, in particular to a wireless network coverage automatic planning method and system based on line characteristics. Background The wireless signal coverage of high quality and seamless is realized on the traffic main lines such as railways, highways and the like, and is the key for guaranteeing traffic safety and high-efficiency operation. For example, the GSM-R system is used as a railway-specific digital mobile communication system, and the quality of the network planning design is directly related to train dispatching, driving safety and emergency communication. At present, the wireless network planning design of the linear engineering is generally carried out on a Computer Aided Design (CAD) platform, but the core flow of the wireless network planning design still highly depends on manpower, and a plurality of deep technical bottlenecks exist: 1) Deep cut and semantic gap of data and graphics: The starting point for the design is a diverse raw data such as a line survey Excel table, a structure list PDF, etc. These data sources are physically and logically separated, forming "data islands". The primary task of the designer is to "translate" these engineering data into geometric information that the CAD system can understand. This translation process is manual, unidirectional, e.g., manually converting mileage strings (e.g., "dk123+456") into CAD coordinates. In this process, the rich engineering semantics of the original data (such as whether a point is the "tunnel portal" or the "station center") are completely lost. The final CAD drawing is essentially a static, semantically geometrically-complete collection. A circle or rectangle on the figure is not known to be a "base station" or "repeater" itself, but is merely a pile of lines. This semantic gap between data and graphics is the source of all subsequent problems. 2) The process relies on personal experience and is non-deterministic: Because CAD primitives lack engineering intelligence, the decision making process for device placement relies heavily on the personal experience of the designer. For example, the rule of "the distance between repeater stations in the tunnel is about 1.5 km" in the communication specification, specifically how to accurately distribute points according to the length, gradient, curvature and the like of the tunnel, does not have a certain algorithm, but relies on manual judgment. This results in a non-deterministic process for the entire design flow, where different designers, even the same designer, are faced with the same input data at different times, may produce different but all compliant designs. This lack of reproducible and standardized procedures makes it difficult for the design quality to be stably controlled, and also makes the design knowledge effectively impossible to solidify and inherit. 3) Linkage failure of design changes and high iteration cost: In lengthy engineering projects, the change of line parameters is normal. Any minor design change causes a "modification storm" due to the data and graphics splitting and the lack of inherent logical relationships between primitives. For example, a fine tuning of tunnel mileage means that the designer needs to: a. Manually calculating new coordinates of all devices in the tunnel again; b. Manually moving each associated equipment tile on the CAD drawing; c. Manually redrawing all communication links connected thereto; d. Manually updating all the labeling information; e. Manually counting the number of the equipment again, and modifying an engineering quantity table; f. all system structure diagrams, frequency planning tables, etc. referring to the device information are manually modified. This process presents the fundamental disadvantage of the prior art lacking two-way correlation in that the data changes cannot automatically update the graph nor the graph changes can reverse update the data model and associated graphs. The linkage manual modification of the whole body after pulling is extremely easy to introduce new errors, leads to inconsistent data, makes the cost of any form of design optimization and scheme comparison (namely design iteration) extremely high, and can hardly be effectively executed in actual engineering. Therefore, a technical scheme capable of filling up the semantic gap between data and graphics, algorithmically determining the design rules and determining the flow, and establishing an automatic linkage update mechanism for design change is urgently needed in the field, so as to fundamentally solve the defects in the prior art. Disclosure of Invention The invention provides a wireless network coverage automatic planning method and system based on line characteristics, which are used for solving the problems that the linear engineering wireless network planning design flow