CPU card-based urban all-in-one card application solutions and overall design ideas
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Abstract: The consumer areas involved in the City Card include buses, taxis, road and bridge tolls, small consumption, water, electricity and coal payment, etc. Its realization involves project planning, standard specifications, network technology, software technology, IC card application technology, etc. Link. This article discusses the city card application solution and overall design ideas based on the CPU card from a macro perspective.
The overall design goal of the “City All-in-One Card” system is to build a first-level platform centered on the clearing system, with smart IC cards (non-contact CPU cards) as the carrier, and micro-consumer payment services as the basis to connect buses and taxis The network information system of the secondary settlement system such as water supply and power supply for gas stations, parking lots, etc., realizes “one card with multiple functions” in many fields. After citizens have the “city card” IC card, they can use it to take buses, taxis, and road and bridge tolls. Etc., to realize electronic charging, which is convenient and fast, and saves the inconvenience of change. At the same time, the “all-in-one card” IC card can also be used in areas such as water, electricity, coal, supermarkets, and small consumption for citizens, enterprises, municipal departments, and other commercial organizations. Provide convenient and efficient payment, settlement and services to improve management. In terms of the implementation goal of the project, it is to build a clearing and settlement network operating system that covers the entire city’s public consumption area, which is safe and reliable, and has national and regional interoperability. Using the increasingly mature radio frequency IC card technology and advanced computer technology, electronic charges in the field of public consumption are realized on this public platform.
1. Guiding ideology
Adhere to a high starting point and face the 21st century. Ensure the advanced nature of the system for a period of time in the future and its leading position in the domestic industry;
The system implements the “practical, reliable, advanced and economical” eight-character policy, is application-oriented, promotes management to a higher level, and builds in accordance with the principle of urgent use first, step by step;
Starting from the actual situation and based on development needs, the overall plan and step-by-step implementation ensure that the system is highly integrated, overall optimized, safe and reliable, and steadily promoted;
The system fully considers function expansion and technological upgrading, adapts to the requirements of the rapid development of contemporary information technology, in order to achieve the best results;
To ensure the security and confidentiality of the system, based on the formation of independent copyrighted IC card products, it is conducive to the transformation of the existing system and the realization of localization;
2. Design principles
The goal of the “City One Card” system is to establish an advanced information platform, and rely on this platform to gradually improve the corresponding application system, so it is a large-scale, complex structure, and large amount of information integrated information system construction project. When carrying out this project, the five unified principles of “unified planning, unified standards, unified manufacturing, unified card issuance, and unified management” were implemented. At the same time, a strict market access system was implemented to put forward requirements on the qualifications and equipment performance of the project contractor. In the process of system design, system construction and implementation, the following principles should be met:
1. Phase and compatibility of implementation
Considering that the design, development, application and maintenance of this system is a complex management and technical project, the system construction can be divided into multiple stages to be implemented step by step. System design needs to determine the overall architecture and technology selection of system construction, and build a system platform framework on this basis and develop the most urgently needed business systems. With time and industry development needs, gradually develop new application areas, and The new application fields are integrated into the system platform framework, so as to finally realize a compatible, extensible, and interconnected all-in-one card application system.
2. The advancement and maturity of technology
The system design should adopt advanced technologies and methods, reflect the advanced level of today, and have development potential to ensure a dominant position in the next few years and a smooth transition to the next generation of technology. Among them, in the type and model of IC card and the selection of reading and writing equipment, it is necessary to study the development trend of technology to ensure the compatibility of the card and equipment in the future technological reconstruction process. It is also necessary to pay attention to the relative maturity of the system structure and equipment. .
3. Information security and accuracy
Through the establishment of a security control system, all objects in the system are controlled and protected, and a series of measures such as identity authentication, access control, permission setting, and communication confidentiality are realized to ensure the security of system data. The system should take different measures for different applications and different network communication environments, and set up corresponding security mechanisms in the process of data collection, storage, transmission, exchange, and use to ensure the accuracy and safety of data. Wuxi Huajie mainly applies the IC card key management system for the construction business in the project design.
4. Reliability and stability of the system
The reliability and stability of the system directly affect the normal operation of the transaction business, and it is the guarantee of the social image. Starting from system structure, technical measures, equipment performance, system management, manufacturer technical support and maintenance capabilities, etc., to ensure the reliability and stability of system operation and achieve the maximum mean time between failures; from consumption data to data source collection, From card selling and recharging to data uploading and clearing, machinery, equipment and software systems are required to have high reliability and high stability to ensure that the system can work stably and effectively for a long time with high capacity. The software, hardware, and network equipment involved in the core business need to be designed with redundancy, and the core database needs to be designed with a reasonable backup system.
5. The standard and openness of the system
In order to meet the needs of the system’s selected technologies and equipment for cooperative operation, the long-term effect of system investment, and the continuous expansion of system functions, the system must be open and standard. The overall structure design of the system should follow international and national norms and standards, and standardization and standardization should be run through every stage of system development and construction. Among them, in the design of IC cards and machines, it is necessary to fully consider the product characteristics of multiple equipment providers, formulate unified technical specifications, and realize the compatibility of different machines. System standardization can fully ensure the scalability of the system, and with the development of new technologies, the subsequent development of subsystems can be seamlessly integrated into the entire system.
6. The manageability and maintainability of the system
Since the entire system involves many functions and applications, it is necessary to consider that the system should have good manageability and maintainability. Corresponding means and methods should be provided to monitor the operating status of the system in real time and perform corresponding operations when necessary.
7. The practicality and economy of the system
The system must ensure the technical and economic feasibility. The system construction should always implement the application-oriented, practical-effect-oriented policy, adhere to the practical and economical principles, and try to achieve construction, application, yield, and development as much as possible.
Three, the overall system architecture system
The consumption areas of the city card management system include buses, taxis, road and bridge tolls, small consumption, water, electricity and coal payment, etc. To fully realize the IC card card project, it should have a hierarchical system structure and a clear data processing process.
The city all-in-one card management system project, set up an urban all-in-one card settlement system (called the first-level system); there are a city all-in-one card issuance and replenishment system and a number of sub-center settlement systems (called the second-level system), which are used for settlement in public transportation, rental and other industries System; At the same time, there are three-level systems under the sub-system. They are sub-operating companies or stations for buses, taxis, roads and bridges, and small consumption; and finally POS terminal equipment (including POS consumer terminals and public transportation, and the replenishment of the rental system Points and other replenishment points and consumption points where banks and supermarket systems are located) and IC card passengers to spend with their cards.
The “first-level platform” of the system operated by the “all-in-one card” company is responsible for the normal operation of the basic software and hardware platforms and the network in the entire system. A number of system databases have been set up in the “first-level platform”, mainly including the “recharge database”, “recycling database”, “clearing database” and “query database”.
The functional modules in the “first-level platform” cover the business processes involved in the operation of the “all-in-one card” company, including: card file management, recharge and sales management, data recovery management, system monitoring and management, clearing management, settlement and transfer Management, customer service management, statistical analysis and query functions, these functions support “all-in-one card” companies to carry out various business activities
The industry interfaces in the “level 1 platform” are divided according to the application unit industry. Each industry interface can support multiple independent companies and correspondent bank outlets. Among them, the “small consumption interface” can also support supermarkets, shopping malls, newsstands, etc. Large-scale merchants carry out “all-in-one card” consumption.
The “secondary platform” of the system supports all application units to carry out the “all-in-one card” business, cooperates with the “primary platform” for fund clearing and settlement, provides consumption data information, and provides accurate digital basis for application units to make operational decisions in order to reduce costs, Improve efficiency and improve service quality.
Corresponding application units such as public transport and rental in the “second-level platform” have a more complex organizational structure, so the corresponding information requirements and information processing processes are more complex. The system provides a “three-level platform” for these industries and enterprises, and is responsible for the collection and recovery of consumption data and the distribution and allocation of operating income for public transportation branches, taxi company fleets, and individual settlement units.
The system “user platform” provides a rich “all-in-one card” consumer environment for the general public. Through this platform, information exchange between IC cards and various machines can be completed, and “one card in hand, worry-free life”.
In addition, based on the Internet, the system directly provides citizens with Web query services, which can complete online business consulting, business acceptance and information query functions, and improve the service quality of the system. The database and application software involved in Web query are relatively independent to ensure the information security of the system.
Four, operating environment
The system is implemented with a three-tier architecture of client/transaction processing/database server, and transaction middleware is used to control transaction requests (initiated by the client) and processing (completed by the server). The use of a three-tier structure can better balance the load on the client and server, reduce network communication and competition, and improve the throughput of system transactions; when the number of connected clients is large, the three-tier structure will occupy less database The number of connections can reduce the resource consumption of the host; when the business processing logic changes, the system can be easily modified at a small cost.
In order to meet the principle of system openness, a relational database management system that conforms to the SQL standard and supports the “client/server” system structure should be selected. The entire computer system should be based on popular database management systems in the market, and the same kind of database management systems should be used as much as possible to better support data distribution processing.
Five, the scope of application
It mainly involves payment and identity authentication in various areas of urban residents’ lives, and can complete the pre-charging of public utilities, rapid settlement and payment in multiple fields such as transportation, social security, medical care, tourism, micropayments, etc., to ensure identity authentication in various fields And information storage query, the more mature applications of the City Card are listed as follows:
Public transportation charges: bus, subway, light rail, rental, road and bridge charges;
Public utility charges: water, electricity, gas, cable television, telecommunications charges;
Small charges at commercial outlets: card-swiping charges from designated merchants such as parking lots, supermarkets, tea houses, coffee shops, etc.
Travel consumption: instead of tickets, travel points;
Refueling and refueling: oil and gas charges and tax control management.
Six, system technical characteristics
1. The system is mature, safe and reliable;
2. Use non-contact CPU cards that follow the “Technical Requirements for COS for CPU Cards in Construction Business”;
3. Adopt the key management system of the Ministry of Construction to ensure the safety and reliability of the system;
4. All levels of application software of IC card reading and writing equipment and city card management system are all independently developed by the technical team of Huajie Company, with legal independent intellectual property rights;
5. The system software and hardware platforms (servers, network equipment, communication lines, databases, middleware, etc.) are all configured and implemented in a dual-machine hot standby mode;
6. The system uses ultra-large-scale mainstream database products, and the application software development adopts a three-tier structure model, that is, the client/middleware/server model;
7. Adopt data incremental backup technology to realize incremental data backup per unit time;
8. The system has technical characteristics such as openness, standardization, advancement, practicability and good scalability;
9. Friendly user interface, easy to operate and use, easy to promote and apply;
10. Reserve the interface for regional intercommunication and national intercommunication;
11. Modular sub-units in other consumer fields can be expanded;
7. Conclusion
To fully realize the CPU card city card system, the architecture design should have a hierarchical architecture and a clear data processing process. In order to meet the long-term effect of investment and the continuous expansion of system functions, the system must be open and standard. The overall structure design of the system should follow international and national norms and standards, and standardization and standardization should be run through every stage of system development and construction. At the same time, the project should proceed from the actual situation and be based on development needs. The overall plan, Implement step by step to ensure a high degree of system integration, overall optimization, safety and reliability, and steady progress.
references:
[1]Yang Zhenye.. IC card technology and its application[Z].Science Press, 2006.
[2]Technical requirements for non-contact CPU card chip in construction industry[J].China Standard Press, 2009.
[3]Shenzhen Kaisheng Technology Co., Ltd.: http://www.chinaiccard.com/.
[4]Liu Shouyi. Smart Card Technology[M]. Xidian University Press, 2004.
[5]Shen Jian. Smart City: New Thinking on Urban Quality[M]. People’s Posts and Telecommunications Publishing House, 2012.
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