The traditional base station maintenance and management technology is insufficient, there are many operational risks, and digital technology must be used to improve the level of refined management and reduce operational risks. Based on resource and environmental supervision, intelligent operation and maintenance provides a base station maintenance management system integrating status monitoring and fault management, which aims for process monitoring, management and control as human-computer interaction, links management tools such as work orders and reports in the system, completes the distribution of control instructions and output results, and then realizes the digital transformation of base station operation and maintenance management.
By analyzing the pain points in the current base station operation and maintenance management and summarizing the more mature digital technologies in the industry, this paper proposes solutions for the digital transformation of the base station operation and maintenance management mode.
Problems in base station operation and maintenance
● Lack of in-depth understanding of the market-oriented transformation
In the face of the background of diversified business, diverse needs and strict cost control under the new situation, the operation and maintenance of base stations is still managed in accordance with the coarse particles of asset categories, without establishing a sense of value, and has not done a deep and detailed job in asset effectiveness and safety, asset life extension, accurate allocation of equipment and facilities, and rationality of asset maintenance investment, and has not effectively achieved "operation" management and asset value.
● Inertial thinking is serious, and the management method is solidified
Accustomed to the traditional mode of relying on manual management, the base station operation and maintenance is still accustomed to "human sea tactics" and "battle-style" management in production operations and operation management. In terms of management methods, it is not possible to make full use of digital and intelligent methods to achieve process control. Although some online management systems have been developed and used, the management model has not been subverted, and the remote visual and controllable assets have been fully realized.
● Low level of refined management
First, the number of per capita management towers is large, and the degree of refined management is low. China Tower Co., Ltd. (hereinafter referred to as China Tower) has 108 stations per capita management station, which is 1.52 times that of Indian BI Company, which ranks second in the world in terms of the number of towers per capita, and the huge per capita management number increases the difficulty of refined management. Second, in terms of resource management, customers frequently increase or decrease equipment, there is an empty window period for operation and maintenance personnel to patrol, the system update is not timely, and it is easy to have inconsistencies between system information and on-site physical objects. Third, in terms of personnel access to the station and the management of the work, the problems of customer equipment such as "private connection" and "private power", which cannot be detected in time, resulting in the loss of the company's income. Fourth, in terms of extreme scene monitoring, in the face of extreme rain, snow and other meteorological disaster scenarios, under the traditional operation and maintenance service mode, it is difficult to provide key information such as weather, roads, and disasters within the scope of emergency scenarios in a timely manner. Fifth, the number of personnel in the cooperative unit is large, the supervision method is single, and the management cost is high and difficult, which brings great challenges to the realization of high-quality and efficient operation and maintenance management. Sixth, in terms of inspection, the traditional manual inspection efficiency is low and the cost is high, such as the original operation and maintenance platform online inspection, although there is quality inspection but the mode is backward, the average inspection of the station takes 30 to 60 minutes, wasting manpower. Seventh, in terms of the accuracy of power generation data, due to the lack of monitoring measures, there is a risk of integrity through the photos taken by on-site power generation personnel. Eighth, in terms of project supervision and acceptance, the construction site supervision method is single, relying only on supervision and execution, the project review is difficult, the manual station-by-station acceptance mode is extremely inefficient, and the cost of going to the station is high.
Digital management process master planning
Intelligent O&M is an important measure for China Tower to implement the strategy of network power and promote the application of 5G scale, and it is a powerful engine for China Tower to build a "five-modernization" operation system and build a "five-type" enterprise to improve quality and efficiency with digital transformation, create value for the industry, and achieve high-quality development.
As a pilot unit of intelligent operation and maintenance of China Tower, China Tower Zhengzhou Branch has formulated an overall plan and implementation opinions after one year of construction and exploration. Based on the more mature digital technologies in the industry, intelligent O&M focuses on the application of functions such as intelligent inspection and intelligent in-station management, and explores and studies the impact of technological changes and production organization changes on the O&M system.
● Base station intelligent maintenance system construction scheme
The intelligent operation and maintenance technology solution architecture is composed of three parts: the perception layer, the access layer, and the platform layer, and adopts the system construction mode of the national first-level architecture, and realizes the whole process of image and video data acquisition, data intelligent analysis, and problem dispatch through the digital camera, edge smart box, and background AI algorithm.
● O&M business process reconstruction
In view of the pain points of traditional maintenance, the intelligent operation and maintenance technology solution formulates an intelligent operation and maintenance process through the application of intelligent equipment, and adjusts the original work process for the work that requires on-site verification, such as inspection, resource verification, station management and follow-up, so as to integrate it into the intelligent operation and maintenance system and comprehensively improve business efficiency.
● Operation and maintenance organization system reconstruction
Adhering to the principle of "autonomous intensification of monitoring and scheduling and autonomy of important on-site operations", with intelligent operation and maintenance as the starting point, the working hours of base station inspection are greatly reduced through intelligent operation and maintenance, and the network operation center and regional production organization system are reconstructed.
Intelligent maintenance and construction scheme of base station
Perception layer
By installing cameras to collect periodic and real-time events of image data inside the machine room and around the base station, the system automatically monitors 7×24 hours a day.
Access layer
Through the edge intelligent gateway, the single-station camera data is aggregated and preliminary AI analysis is carried out, and the 4G/5G network is used as the data transmission link to realize the docking of the terminal and the system platform.
Platform layer
Realize remote centralized management of terminal equipment, centralized intelligent analysis of image data and other functions. The base station intelligent maintenance network topology is shown in Figure 1.
Figure 1 Base station intelligent maintenance network topology
Operational business process reconstruction
● Base station inspection process
According to the intelligent inspection business process, generate intelligent inspection work orders on the 1st of each month; the operation and maintenance platform automatically inspects and takes photos according to the inspection work orders to automatically identify hidden danger photos; the monitoring center manually verifies the authenticity of hidden danger photos; distributes work orders to the hidden danger site after verification; takes orders from maintenance personnel, processes on the station, returns to the order, monitors the center to verify the effect of the return order, and other processes, regularly formulates inspection plans in batches, and the system AI completes the base station inspection, and the background manually guarantees the correct rate of inspection, so that "abnormalities must be verified, and problems must be handled" Basic requirements to ensure the integrity of the inspection process and reduce the workload of personnel on the station.
● Base station asset inventory
Through the intelligent operation and maintenance system, a new resource management system is established to achieve intelligent resource management. By taking photos and uploading assets and operator equipment, and comparing them with the photos of the same site last time, the system AI automatically detects the change of the picture and generates an early warning of the change of the picture. Then the duty personnel of the network operation center will verify the asset change warning, compare the resource photos and early warning photos, and notify the resource supervisor after confirming the change of the tower resource assets, and the resource supervisor will feedback the processing results to the network operation center every week. And by the duty personnel to compare the photos found that it is the operator's equipment change, to the regional manager to send a verification work order, the regional manager according to the company's private installation of private regulations to take measures, and feedback in the work order related processing. Finally, according to the feedback of the regional manager, the operator equipment change report is generated to confirm the area and quantity of the device. Through the above procedures, the intelligent and remote management of resource assets is realized, and the efficiency of resource asset management is improved.
● Entry and exit station and work management process
Explore intelligent access station and engineering workman management, optimize the traditional process, and integrate the management of access station and construction work into the intelligent operation and maintenance system to achieve intelligent management. First of all, the construction unit, maintenance personnel, and customers submit the approval of the station, and the regional maintenance manager reviews the reason for the station; secondly, the station personnel contact the regional maintenance duty personnel to open the door remotely, and the duty personnel and the station personnel are remotely followed, saving the photos of the personnel entering and leaving the station, recording the information of the personnel entering and leaving the station; finally, the camera is remotely verified to verify whether the scene is consistent with the application cause, and the infrared alarm linkage with the access control of the operation and maintenance system is linked, and the photo and video are taken for later verification. Through the above-mentioned remote and online control, the situation of entering and leaving the station is monitored in real time, and the equipment is eliminated from being installed and unloaded privately.
After the completion of the intelligent operation and maintenance process, the organization of the monitoring center and the maintenance company have carried out a large number of operations and uses of the relevant functions of the intelligent operation and maintenance platform, gradually optimized a series of normative requirements such as intelligent operation and maintenance dispatch scheme, intelligent fault handling and asset management verification process, intelligent inspection and assessment indicators, and gradually implemented the requirements of visual and manageable control.
Reconfiguration of O&M organizational system
● Base station maintenance dispatch system
It should gradually change from routine maintenance to "dispatch system" intelligent maintenance, and implement a "piece system" payment model for daiwei. Through the implementation of the new model of "intelligent maintenance + dispatch production industry", it has accumulated certain experience in many aspects such as intelligent inspection, accurate dispatch, value operation, etc., and initially has the conditions to expand the application scope of the "intelligent maintenance + accurate dispatch" model, from the traditional extensive planning operation mode to the accurate piece dispatch operation mode. In order to realize the quantification of working hours and efficient maintenance of the maintenance team, promote the reform of the tower operation and maintenance system, promote the double improvement of the tower maintenance service capacity and quality, and realize the visibility of the tower, the management of the business, and the controllability of the equipment.
● Fully release the human resources of Daiwei
Through camera installation, platform construction and other digital methods, complete the construction of intelligent operation and maintenance environment, and gradually realize ten major functions such as intelligent inspection, intelligent asset management, intelligent station management, intelligent emergency support, intelligent power generation audit, intelligent acceptance, intelligent quality control, intelligent safety management, intelligent risk prevention and control, and business development. Reduce the number of repeated personnel on the station, improve production efficiency and management efficiency, divert personnel to different teams, expand professional teams, achieve the purpose of cost reduction, efficiency increase and quality improvement, promote the reform of the tower operation and maintenance system, and promote the double improvement of tower maintenance service capabilities and quality.
● Operational system reform
On the basis of optimizing the allocation of operation and maintenance resources, we will set up three departments and offices of site operation room, operation and maintenance monitoring room and asset integration room, and 5 teams of cost management and asset operation site team, tower maintenance team, comprehensive maintenance team, equipment maintenance team, and power generation team, deepen professional management, form backbone and expert professional teams, and realize the reform of operation and maintenance system. First, the operation and maintenance operation is professional and modular, and the division of labor of each team is clear. The second is to make maintenance work remote. In line with the principle of "can automatically not manual, can be remotely not on-site", the operation and maintenance work is prioritized for remote implementation, through image comparison, asset intelligent identification, operation and maintenance alarm linkage and other technologies, to achieve intelligent inspection, intelligent asset management, in and out of the station management, extended to emergency support, power generation audit and other production operations, so as to ensure the quality of work and data authenticity, and expand intelligent operation and maintenance operations; the use of big data analysis of historical alarms, adapt to resources, cost reduction and efficiency.
Intelligent O&M will deeply integrate intelligent technology into O&M production, replace traditional manual operations with digital innovation, combine corresponding management system changes, reconstruct the O&M production organization system, improve the intelligent level of production management of China's tower operation and maintenance, create a digital intelligent operation and maintenance capability with tower characteristics, forge the company's core competitiveness, and lay the foundation for the high-quality development of China's tower digitalization.
End
Author: China Tower Co., Ltd
Zhengzhou Branch Yin Xiaoliang
Editor-in-Charge/Layout: Fan Fan
Review: Shen Qing
Producer: Liu Qicheng
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