On March 30-31, the 25th China Expressway Information Technology Conference was held in Fuzhou Strait International Convention and Exhibition Center, and AntDB with hyper-converged streaming real-time data warehouse was present at this event.

The China Expressway Information Conference aims to accelerate the innovative application and industrial integration of 5G, big data, cloud computing, artificial intelligence, block chain, digital twin and other new information technology in many fields such as expressway construction, management, maintenance, operation and travel services, and digital transformation and intelligent upgrading of transportation facilities, promote high-quality development of transportation, further improve the level of expressway Information construction, management and services, strengthen the exchange of experience and technology among peers, and promote the application of new technologies and products.

Figure 1: AntDB's appearance attracted many customers' attention and consultation

Database is the key factor of intelligent expressway construction

Nowadays, new technologies such as cloud computing, big data, Internet of Things and artificial intelligence are accelerating the digitalization of various industries, and based on these new technologies, expressways are also entering the stage of intelligent operation and service. Highway network, sense communication control network, green energy and other intelligent expressway infrastructure construction is directly related to whether business management, emergency response and toll management can be visual, mobile, intelligent and accurate.

As a key element, "data" is the blood cell that supplies oxygen to the "brain" of the intelligent expressway, and runs through the digitalization and intelligent transformation, so the management ability of "data" or information becomes the key ability of intelligent expressway.

Database is the circulatory system that supports the effective flow of "data" . Database and data management platform as the carrier of data, are not only the connector and bridge of the expressway, transmission network layer and basic information layer, but also the decisive factors of expressway digital capability.

The key features of the future data management platform must be distributed + scenario + independent. The comprehensive promotion and application of domestic database is not only the need for reducing cost and increasing efficiency and enhancing supply chain security, but also the need for future business development.

Figure 2: database supports the effective flow of "data"

Advantages of AntDB

AntDB is one of the earliest independently developed database in China, which came into being at the beginning of the 21st century in response to the actual needs of the billing system of telecom carriers. It has been 15 years since 2008 when it was applied to the core system of telecom carriers. With the upgrade of communication technology from 2G to 5G, it has completed 7 iterations from memory database to a new generation of distributed relational database, serving more than 1 billion people and processing millions of telecom core transactions per second, forming four features:

Amount - A huge number of subscribers. AntDB serves more than 1 billion mobile phone owners.

History - A history of solid implementation. AntDB has gone through 15 years of trials and tribulations since its implementation in in 2008.

Speed - Fast execution performance. AntDB stable can handle millions of core telecom transactions per second at its peak.

Stability - Stable and reliable products. AntDB has been running smoothly and safely in the core system of telecom operators for more than ten years.

In the face of the current demand of enterprises and individuals for "fast" and real-time response, AntDB also has its own special advantages:

Hyper-convergence - in the overall architecture, a new concept of "hyper-convergence" is proposed to integrate multiple engines and capabilities to meet the increasingly complex mixed load scenarios and business needs of mixed data type for enterprises.

Streaming real-time data warehouse - through the cloud-native "streaming processing engine", streaming computing and database are integrated at the kernel level, so that the database becomes a "real time" database where data is processed upon entry. It can meet the demands of real-time processing scenarios such as real-time business analysis, real-time reporting and asynchronous transaction scenarios such as Internet+. Real-time data pushing and zero-code streaming processing and development are the advantages of AntDB streaming real-time data warehouse.

Figure 3: AntDB features and advantages

In addition, we have the ultimate performance guaranteed by the multi-storage engine infrastructure capable of processing millions of concurrencies, hardware and software adapted to the full ecology, and the whole life cycle of intelligent and visual operation and maintenance control system.

At present, AntDB has been applied in 24 provinces and cities for China Mobile, covering many industries such as telecommunication, finance and public service, and continues to help many industrial customers such as Shanghai Mobile and a provincial expressway in southwest China to complete the localization and upgrading of core business systems.

Intelligent expressway project in a province in southwest China

Intelligent expressway project of a province in southwest is the first project in the expressway industry that completed the cost reduction and efficiency upgrade of the clearing and settlement system.

The expressway clearing and settlement system of a province in southwest China is a comprehensive system for all the operating companies, competent units, participants and the public, etc. It is interfaced with roadside sensing equipment through the network to realize the whole business life cycle management of clearing and settlement from data collection, cleaning, conversion, verification, clearing and settlement, reconciliation and fund transfer.

Figure 4: overall solution for clearing and settlement system

In 2019, the relevant national ministries and commissions proposed to "abolish provincial toll stations on expressways within two years" to realize non-stop express toll collection, reduce congestion and facilitate the masses. In the face of policy changes, the provincial clearing and settlement system of expressway center needed to carry out a comprehensive upgrade, and strive to achieve the "unified standard, network operation, graded management, aggregated clearing" of network toll management within four months to meet the national network toll requirements.

Since May 2019, the province in southwest China has gradually abolished provincial expressway toll stations and gradually promoted ETC tolling, the mileage of this province has exceeded 8,000 km and the total number of ETC users in the province has exceeded 6 million, with the utilization rate of ETC for passenger vehicles at over 70%, and trucks at over 60%, so the volume of data also brought challenges to database selection.

The clearing and settlement business includes online transaction, data analysis, report output and other scenarios, with the characteristics of short time and super concurrency, which is a typical integrated scenario of transaction plus real-time analysis, and the commercial database used before has many problems in processing, such as huge business access leading to data processing backlog and no data caching mechanism.

By implementing AntDB, a distributed relational database, it not only met the demand for real-time and batch entry of all kinds of data, but also provided online query function to the outside, while taking into account the demand for all kinds of regular reporting functions, and realizing the unification of the data.

Since the system went online at the end of 2019, it has been running smoothly and efficiently for more than three years, processing more than 10 million gantry data and more than 1.3 million lane data average per day, with an active data volume of more than 85TB. Compared with the original four-node RAC, the performance has been improved by 15% and the cost has been saved by 80%, realizing a real sense of cost reduction and efficiency.

The upgrade of the clearing and settlement system of a provincial expressway in southwest China has enabled the expressway network toll collection company to have the integrated ability of clearing and settlement and account analysis, to realize the efficient clearing and settlement business, to ensure effective docking with the ministry-level system, other provincial systems and other business systems, to carry out timely and accurate clearing and settlement of tolls, to promote the healthy development of the road network toll collection business in the province, to set an example for the application of domestic database in the expressway industry, and to enhance confidence in the application of domestic technology in the industry.

With the appearance of AntDB in this event, the experience related to intelligent expressway in a province in southwest China will bring inspiration to more customers for intelligent expressway construction, and AntDB will also win the attention of more customers and make greater contribution .