In most university building campus card systems, the carrier that uses the card system information is the non-contact radio frequency card (Mifare One), which is the most basic and most important device in the card system. However, with the popularization and application of the Internet of Things and mobile terminals, the uplink and downlink data rates supported by wireless networks in college campuses and digital campuses are constantly increasing, and new applications, especially data services, are emerging. Mobile phones are becoming more and more Missing information terminal. More and more people use mobile phones instead of watches, notepads, MP3s, cameras, etc., and our wallets and keys are also integrated into mobile phones. RFID radio frequency identification technology also forms RFID in various fields of college campus management. The terminal subsystem uses the campus backbone network as an information platform to implement system integration of all terminal subsystems. It makes us more convenient and safer to study, work and live on campus. At present, the card media used in most college campus card systems is a contactless RF card, that is, Mifare One card reading and writing technology set computer technology, automatic control technology, network communication technology, smart card technology, sensing technology, pattern recognition technology and mechatronics. Technology in one, applied to the intelligent card management of colleges and universities. The non-contact RF card is used as a pass ticket, and the library borrows and returns books, access control, consumption, on-board, attendance, water control, sports club activities and other systems are collected in one card. All functions can be completed with only one card. The system adopts an open-ended architecture that conforms to the trend and is compatible with third-party systems and devices to achieve high integration of user systems. However, with the Mifare card cracking incident in 2008 and the 3G campus business in 2009, the SIMPASS card or RFID-SIM card (different carrier card standards) is used as an alternative mobile phone card. Concept products are rapidly gaining popularity. Using a mobile phone with both communication and contactless card functions, the card system uses radio frequency identification (RFID) and NFC technology for short-range communication. It only needs to use the mobile phone to access the card reading device to complete the authentication or payment, which is not only time-saving, convenient, and multi-purpose. It can also directly query the real-time status and account balance, and expand the business field of existing mobile phones. NFC is another new technology that affects the global economy and human life after mobile communication technology and Internet technology. 1 Mobile phone combined with NFC technology NFC (Near Field CommunicaTIon) is a standard short-range wireless connection technology that uses magnetic field induction to enable communication between short-range electronic devices. It provides a seamless connection for the identification protocol for secure data transmission verification, and has the advantages of low power consumption and good security. For applications requiring high bandwidth such as audio and video streams, it can be used with Bluetooth, wireless LAN, etc. Technology provides automatic access. NFC achieves both active and passive operation through the 13.56 MHz band at a distance of approximately 10 cm. Currently available data transmission rates include 106 kbps, 212 kbps, and 424 kbps [1]. NFC technology can better integrate with mobile phones and call the hardware and software resources inherent in mobile phones. 2 RFID technology - mobile smart card (RFID-SIM) technology RFID-SIM is a patented technology of Direct Power Express. It is developed according to the technical specifications and standards of national smart card applications. The 2.4G RF module is integrated on the sim card to form a dual-interface mobile smart card with RF function. Consumers only need to replace their existing SIM card with an RFID-SIM card to turn an existing mobile phone into an NFC-like mobile phone. The RFID-SIM technology uses the shared 2.4 GHz IMS band, which has a relatively small wireless product and antenna, and has a natural advantage in combination with mobile phones. Its communication distance is adjusted in 10-500CM, one-way support 100M data broadcasting, communication speed up to 1Mpbs, support automatic sensing and active departure two communication methods. Automatic TDES encryption during data transmission can effectively prevent data from being eavesdropped, and its own protocol can support two-way authentication when swiping cards. RFID-SIM uses spread-spectrum communication to spread the information over a wider bandwidth. Due to the high frequency of use and the shorter wavelength, the signal can be transmitted from the gap between the cell phone battery and the backplane, which has a strong penetrating power. Because it works in the 2.4GHZ frequency band, RFID-SIM technology has the following characteristics: spread spectrum communication is not easy to be interfered; code division multiple access capability is strong; security is confidential; data transmission rate is fast. RFID-SIM can be controlled by the phone keypad for the normal mobile communication, authentication and physical connection with the mobile phone; built-in software for managing high security RFID, e-wallet and other membership cards; using micro RFID module And communicate with external devices through the built-in antenna. It is less expensive than a phone magnetic card and is durable and easy to promote. 1 mobile campus card network architecture As the infrastructure of the campus mobile phone card system, the network plays a key role in the security, stability and reliability of the system operation. Compared with other systems, the network of campus mobile phone card system is more diverse and more complex. It needs to design different network communication schemes according to different services, equipment and environment requirements, and is suitable for network connection between different campuses. The mobile campus card system platform is built on a digital campus private network. The digital campus private network is to build a digital space on the traditional campus by realizing all digitization from environment, resources and applications to expand the time and space latitude of the real campus. The data center of the mobile campus card system is located in the school data center, connected to the central node of the campus by network, and the business management is placed in the open position of each campus, which is convenient for teachers and students. The "one network, one card, one library" on the M1 technology does not cover the current status of the technology and business development of the current mobile phone campus card system. The network architecture of “three networks, one card and one library†is constructed. The “three networks†refer to internal networks, external networks and private networks. The intranet refers to the so-called digital campus network. The private network is a communication link different from the digital campus network. The external network refers to INETRNET. With the height of digital campus integration design, the topology structure of the campus mobile phone card system network structure is shown in Figure 1. Figure 1 Campus mobile phone card network topology 2 Software architecture of campus mobile phone card system Dk Phase Motor Centrifugal Pump,A2 Phase Motor.Driver,Split Phase Motor A2,Motor Control Board Ningbo Zhenhai Rongda Electrical Appliance Co., Ltd. , https://www.centrifugalswitch.com